build: do not include netty in zeebe bom

Due to a bug in netty, some projects that inlude zeebe-bom in their dependency encountered build failure. It is not clear why we added netty in zeebe bom. Ideally third party dependencies should not be in the project bom.

(cherry picked from commit 862cf6e)

bom/pom.xml

@@ -14,7 +14,7 @@
     <artifactId>camunda-release-parent</artifactId>
     <version>3.8.1</version>
     <!-- do not remove empty tag - http://jira.codehaus.org/browse/MNG-4687 -->
-    <relativePath />
+    <relativePath/>
   </parent>
 
   <properties>
@@ -26,8 +26,6 @@
     </nexus.release.repository>
     <nexus.sonatype.url>https://s01.oss.sonatype.org</nexus.sonatype.url>
 
-    <version.netty>4.1.68.Final</version.netty>
-
     <version.java>11</version.java>
     <plugin.version.javadoc>3.3.1</plugin.version.javadoc>
   </properties>
@@ -221,13 +219,6 @@
         <version>${project.version}</version>
       </dependency>
 
-      <dependency>
-        <groupId>io.netty</groupId>
-        <artifactId>netty-bom</artifactId>
-        <version>${version.netty}</version>
-        <type>pom</type>
-        <scope>import</scope>
-      </dependency>
     </dependencies>
   </dependencyManagement>
 

parent/pom.xml

@@ -69,6 +69,7 @@
     <version.model>7.7.0</version.model>
     <version.msgpack>0.9.0</version.msgpack>
     <version.netty-tcnative>2.0.43.Final</version.netty-tcnative>
+    <version.netty>4.1.68.Final</version.netty>
     <version.objenesis>3.2</version.objenesis>
     <version.prometheus>0.12.0</version.prometheus>
     <version.protobuf>3.18.0</version.protobuf>
@@ -425,6 +426,14 @@
         <version>${version.netty-tcnative}</version>
       </dependency>
 
+      <dependency>
+        <groupId>io.netty</groupId>
+        <artifactId>netty-bom</artifactId>
+        <version>${version.netty}</version>
+        <type>pom</type>
+        <scope>import</scope>
+      </dependency>
+
       <dependency>
         <groupId>org.elasticsearch</groupId>
         <artifactId>elasticsearch-x-content</artifactId>