build: switch to Camunda community parent pom (#306)

pom.xml

@@ -8,10 +8,9 @@
     <packaging>jar</packaging>
 
     <parent>
-        <groupId>org.camunda</groupId>
-        <artifactId>camunda-release-parent</artifactId>
-        <version>3.9.1</version>
-        <!-- do not remove empty tag - http://jira.codehaus.org/browse/MNG-4687 -->
+        <groupId>org.camunda.community</groupId>
+        <artifactId>community-hub-release-parent</artifactId>
+        <version>1.4.1</version>
         <relativePath />
     </parent>
 
@@ -172,6 +171,21 @@
                     <artifactId>maven-surefire-plugin</artifactId>
                     <version>3.0.0-M9</version>
                 </plugin>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-site-plugin</artifactId>
+                    <version>3.12.1</version>
+                </plugin>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-project-info-reports-plugin</artifactId>
+                    <version>3.4.2</version>
+                </plugin>
+                <plugin>
+                    <groupId>org.sonatype.plugins</groupId>
+                    <artifactId>nexus-staging-maven-plugin</artifactId>
+                    <version>1.6.13</version>
+                </plugin>
             </plugins>
         </pluginManagement>
     </build>