[build] Allow skipping deploying docker artifacts to maven repo (#5821)

*Motivation*

Allow skipping deploying docker artifacts to maven repo if `skipBuildDistribution` is specified
diff --git a/dashboard/pom.xml b/dashboard/pom.xml
index 348a649..63d3274 100644
--- a/dashboard/pom.xml
+++ b/dashboard/pom.xml
@@ -90,4 +90,15 @@
       </build>
     </profile>
   </profiles>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-deploy-plugin</artifactId>
+        <configuration>
+          <skip>${skipBuildDistribution}</skip>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>
diff --git a/docker/pom.xml b/docker/pom.xml
index f5f4d4b..f271333 100644
--- a/docker/pom.xml
+++ b/docker/pom.xml
@@ -37,4 +37,15 @@
     <module>pulsar-all</module>
     <module>pulsar-standalone</module>
   </modules>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-deploy-plugin</artifactId>
+        <configuration>
+          <skip>${skipBuildDistribution}</skip>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>