Bump org.apache.maven.plugins:maven-source-plugin from 3.3.0 to 3.4.0

Bumps [org.apache.maven.plugins:maven-source-plugin](https://github.com/apache/maven-source-plugin) from 3.3.0 to 3.4.0.
- [Release notes](https://github.com/apache/maven-source-plugin/releases)
- [Commits](apache/maven-source-plugin@maven-source-plugin-3.3.0...maven-source-plugin-3.4.0)

---
updated-dependencies:
- dependency-name: org.apache.maven.plugins:maven-source-plugin
  dependency-version: 3.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

OCPP-J/pom.xml

@@ -103,7 +103,7 @@
           <plugin>
               <groupId>org.apache.maven.plugins</groupId>
               <artifactId>maven-source-plugin</artifactId>
-              <version>3.3.0</version>
+              <version>3.4.0</version>
               <executions>
                   <execution>
                       <id>attach-sources</id>

ocpp-common/pom.xml

@@ -104,7 +104,7 @@
             <plugin>
               <groupId>org.apache.maven.plugins</groupId>
               <artifactId>maven-source-plugin</artifactId>
-              <version>3.3.0</version>
+              <version>3.4.0</version>
               <executions>
                 <execution>
                   <id>attach-sources</id>

ocpp-v1_6/pom.xml

@@ -102,7 +102,7 @@
             <plugin>
               <groupId>org.apache.maven.plugins</groupId>
               <artifactId>maven-source-plugin</artifactId>
-              <version>3.3.0</version>
+              <version>3.4.0</version>
               <executions>
                 <execution>
                   <id>attach-sources</id>

ocpp-v2/pom.xml

@@ -112,7 +112,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-source-plugin</artifactId>
-                <version>3.3.0</version>
+                <version>3.4.0</version>
                 <executions>
                     <execution>
                         <id>attach-sources</id>

ocpp-v2_0/pom.xml

@@ -96,7 +96,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-source-plugin</artifactId>
-                <version>3.3.0</version>
+                <version>3.4.0</version>
                 <executions>
                     <execution>
                         <id>attach-sources</id>