Bump maven-source-plugin from 3.2.1 to 3.3.0

Bumps [maven-source-plugin](https://github.com/apache/maven-source-plugin) from 3.2.1 to 3.3.0.
- [Commits](apache/maven-source-plugin@maven-source-plugin-3.2.1...maven-source-plugin-3.3.0)

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

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

xsd-forms-generator/pom.xml

@@ -157,7 +157,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-source-plugin</artifactId>
-        <version>3.2.1</version>
+        <version>3.3.0</version>
         <executions>
           <execution>
             <id>attach-sources</id>

xsd-scalaxb/pom.xml

@@ -54,7 +54,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-source-plugin</artifactId>
-        <version>3.2.1</version>
+        <version>3.3.0</version>
         <executions>
           <execution>
             <id>attach-sources</id>