SLING-8521 Make testing compliant with Java 9 and higher

* Use Sling Bundle Parent 35
* Update Pax Exam to 4.13.1
* Update Testing PaxExam to 3.0.0
* Update Felix Framework to 6.0.3
* Use HttpClient 3 bundle
diff --git a/pom.xml b/pom.xml
index bd7c858..8ec91b6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -23,8 +23,8 @@
 
   <parent>
     <groupId>org.apache.sling</groupId>
-    <artifactId>sling</artifactId>
-    <version>33</version>
+    <artifactId>sling-bundle-parent</artifactId>
+    <version>35</version>
     <relativePath />
   </parent>
 
@@ -36,7 +36,7 @@
 
   <properties>
     <sling.java.version>8</sling.java.version>
-    <org.ops4j.pax.exam.version>4.11.0</org.ops4j.pax.exam.version>
+    <org.ops4j.pax.exam.version>4.13.1</org.ops4j.pax.exam.version>
   </properties>
 
   <scm>
@@ -178,9 +178,9 @@
       <scope>provided</scope>
     </dependency>
     <dependency>
-      <groupId>commons-httpclient</groupId>
-      <artifactId>commons-httpclient</artifactId>
-      <version>3.1</version>
+      <groupId>org.apache.servicemix.bundles</groupId>
+      <artifactId>org.apache.servicemix.bundles.commons-httpclient</artifactId>
+      <version>3.1_6</version>
       <scope>provided</scope>
     </dependency>
     <dependency>
@@ -305,7 +305,7 @@
     <dependency>
       <groupId>org.apache.sling</groupId>
       <artifactId>org.apache.sling.testing.paxexam</artifactId>
-      <version>1.0.0</version>
+      <version>3.0.0</version>
       <scope>test</scope>
     </dependency>
     <!-- jsoup -->
@@ -330,7 +330,7 @@
     <dependency>
       <groupId>org.apache.felix</groupId>
       <artifactId>org.apache.felix.framework</artifactId>
-      <version>5.6.10</version>
+      <version>6.0.3</version>
       <scope>test</scope>
     </dependency>
     <dependency>
diff --git a/src/test/java/org/apache/sling/pipes/it/PipesTestSupport.java b/src/test/java/org/apache/sling/pipes/it/PipesTestSupport.java
index 117d402..0818fcd 100644
--- a/src/test/java/org/apache/sling/pipes/it/PipesTestSupport.java
+++ b/src/test/java/org/apache/sling/pipes/it/PipesTestSupport.java
@@ -78,6 +78,7 @@
             factoryConfiguration("org.apache.sling.resource.presence.internal.ResourcePresenter")
                 .put("path", "/etc/pipes-it")
                 .asOption(),
+            mavenBundle().groupId("org.apache.servicemix.bundles").artifactId("org.apache.servicemix.bundles.commons-httpclient").versionAsInProject(),
             // testing
             slingResourcePresence(),
             newConfiguration("org.apache.sling.jcr.base.internal.LoginAdminWhitelist")