Source tarball: apply executable file permissions to shell scripts (fixes #10917)  (#11858)

The source tarball cannot be built because some .sh files are missing executable file permissions, see #10917

### Modifications:

copy the Source Assembly descriptor from the main Maven ASF repo to src
add exclusions for "data" and "logs"
set 755 permissions on every .sh file in "src"
Tests:
the build of the docker images and the C client uses the src tarball, so there is minimal test coverage.
Apart from this the only way to test this patch is to try to build Pulsar from the generated source tarball

* Source tarball: apply executable file permissions to shell scripts

* Fix license header

* add more .sh files

* Fix docker build

Co-authored-by: Enrico Olivelli <eolivelli@apache.org>
(cherry picked from commit a5fc929a2bafe9ee6eef025f2cb871d04a548e43)
diff --git a/pom.xml b/pom.xml
index 0ad9807..69ec651 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1567,13 +1567,6 @@
           <artifactId>maven-assembly-plugin</artifactId>
           <version>${maven-assembly-plugin.version}</version>
           <inherited>false</inherited>
-          <dependencies>
-              <dependency>
-                  <groupId>org.apache.apache.resources</groupId>
-                  <artifactId>apache-source-release-assembly-descriptor</artifactId>
-                  <version>1.0.6</version>
-              </dependency>
-          </dependencies>
           <executions>
               <execution>
                   <id>source-release-assembly-tar-gz</id>
@@ -1584,10 +1577,9 @@
                   <configuration>
                       <skipAssembly>${skipSourceReleaseAssembly}</skipAssembly>
                       <runOnlyAtExecutionRoot>true</runOnlyAtExecutionRoot>
-                      <descriptorRefs>
-                          <!-- defined in Apache Parent Pom -->
-                          <descriptorRef>${sourceReleaseAssemblyDescriptor}</descriptorRef>
-                      </descriptorRefs>
+                      <descriptors>
+                        <descriptor>src/assembly-source-package.xml</descriptor>
+                      </descriptors>
                       <finalName>apache-pulsar-${project.version}-src</finalName>
                       <appendAssemblyId>false</appendAssemblyId>
                       <formats>
diff --git a/src/assembly-source-package.xml b/src/assembly-source-package.xml
new file mode 100644
index 0000000..2677299
--- /dev/null
+++ b/src/assembly-source-package.xml
@@ -0,0 +1,113 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+<!-- copied by https://github.com/apache/maven-resources/blob/trunk/apache-source-release-assembly-descriptor/src/main/resources/assemblies/source-shared.xml
+     that was the original default configuration for ASF projects
+     -->
+<assembly>
+  <id>source-release</id>
+  <formats>
+    <format>tar.gz</format>
+  </formats>
+  <fileSets>
+    <!-- main project directory structure -->
+    <fileSet>
+      <directory>.</directory>
+      <outputDirectory></outputDirectory>
+      <useDefaultExcludes>true</useDefaultExcludes>
+      <excludes>
+        <!-- need special permissions -->
+        <exclude>src/*.sh</exclude>
+        <exclude>pulsar-client-cpp/docker/*.sh</exclude>
+        <exclude>docker/pulsar/scripts/*.sh</exclude>
+
+        <!-- Pulsar standalone -->
+        <exclude>data/**</exclude>
+        <exclude>logs/**</exclude>
+
+        <!-- build output -->
+        <exclude>%regex[(?!((?!${project.build.directory}/)[^/]+/)*src/).*${project.build.directory}.*]</exclude>
+        
+        <!-- NOTE: Most of the following excludes should not be required 
+             if the standard release process is followed. This is because the 
+             release plugin checks out project sources into a location like
+             target/checkout, then runs the build from there. The result is
+             a source-release archive that comes from a pretty clean directory
+             structure.
+             
+             HOWEVER, if the release plugin is configured to run extra goals
+             or generate a project website, it's definitely possible that some
+             of these files will be present. So, it's safer to exclude them.
+        -->
+             
+        <!-- IDEs -->
+        <exclude>%regex[(?!((?!${project.build.directory}/)[^/]+/)*src/)(.*/)?maven-eclipse\.xml]</exclude>
+        <exclude>%regex[(?!((?!${project.build.directory}/)[^/]+/)*src/)(.*/)?\.project]</exclude>
+        <exclude>%regex[(?!((?!${project.build.directory}/)[^/]+/)*src/)(.*/)?\.classpath]</exclude>
+        <exclude>%regex[(?!((?!${project.build.directory}/)[^/]+/)*src/)(.*/)?[^/]*\.iws]</exclude>
+        <exclude>%regex[(?!((?!${project.build.directory}/)[^/]+/)*src/)(.*/)?\.idea(/.*)?]</exclude>
+        <exclude>%regex[(?!((?!${project.build.directory}/)[^/]+/)*src/)(.*/)?out(/.*)?]</exclude>
+        <exclude>%regex[(?!((?!${project.build.directory}/)[^/]+/)*src/)(.*/)?[^/]*\.ipr]</exclude>
+        <exclude>%regex[(?!((?!${project.build.directory}/)[^/]+/)*src/)(.*/)?[^/]*\.iml]</exclude>
+        <exclude>%regex[(?!((?!${project.build.directory}/)[^/]+/)*src/)(.*/)?\.settings(/.*)?]</exclude>
+        <exclude>%regex[(?!((?!${project.build.directory}/)[^/]+/)*src/)(.*/)?\.externalToolBuilders(/.*)?]</exclude>
+        <exclude>%regex[(?!((?!${project.build.directory}/)[^/]+/)*src/)(.*/)?\.deployables(/.*)?]</exclude>
+        <exclude>%regex[(?!((?!${project.build.directory}/)[^/]+/)*src/)(.*/)?\.wtpmodules(/.*)?]</exclude>
+        
+        <!-- misc -->
+        <exclude>%regex[(?!((?!${project.build.directory}/)[^/]+/)*src/)(.*/)?cobertura\.ser]</exclude>
+        
+        <!-- release-plugin temp files -->
+        <exclude>%regex[(?!((?!${project.build.directory}/)[^/]+/)*src/)(.*/)?pom\.xml\.releaseBackup]</exclude>
+        <exclude>%regex[(?!((?!${project.build.directory}/)[^/]+/)*src/)(.*/)?release\.properties]</exclude>
+      </excludes>
+    </fileSet>
+    <!-- license, readme, etc. calculated at build time -->
+    <fileSet>
+      <directory>${project.build.directory}/maven-shared-archive-resources/META-INF</directory>
+      <outputDirectory></outputDirectory>
+    </fileSet>
+    <fileSet>
+      <directory>src</directory>
+      <outputDirectory>/src</outputDirectory>
+      <includes>
+        <include>*.sh</include>
+      </includes>
+      <fileMode>0755</fileMode>
+    </fileSet>
+    <fileSet>
+      <directory>pulsar-client-cpp/docker</directory>
+      <outputDirectory>/pulsar-client-cpp/docker</outputDirectory>
+      <includes>
+        <include>*.sh</include>
+      </includes>
+      <fileMode>0755</fileMode>
+    </fileSet>
+    <fileSet>
+      <directory>docker/pulsar/scripts</directory>
+      <outputDirectory>/docker/pulsar/scripts</outputDirectory>
+      <includes>
+        <include>*.sh</include>
+      </includes>
+      <fileMode>0755</fileMode>
+    </fileSet>
+  </fileSets>
+</assembly>
\ No newline at end of file