Harmonize release and develop maven github workflow

As dependabot only checks the default branch the same settings between
the branches are important. This commit moves the develop settings to
release so that in the future it easier to merge from release to
develop.

.github/workflows/maven.yml

@@ -7,12 +7,21 @@ on:
     branches: [ "release", "develop", "freeze", "3.0.x"]
 
 jobs:
+  event_file:
+    name: "Upload Event File"
+    runs-on: ubuntu-latest
+    steps:
+    - name: Upload
+      uses: actions/upload-artifact@6f51ac03b9356f520e9adb1b1b7802705f340c2b # v4.5.0
+      with:
+        name: event_file
+        path: ${{ github.event_path }}
   build:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
-        java: [17]
+        os: [ubuntu-latest]
+        java: [21]
     runs-on: ${{ matrix.os }} 
     name: OS ${{ matrix.os }} Java ${{ matrix.java }} compile
     steps:
@@ -26,7 +35,7 @@ jobs:
     - name: Set up Maven
       uses: stCarolas/setup-maven@d6af6abeda15e98926a57b5aa970a96bb37f97d1 # v5
       with:
-        maven-version: 3.9.3
+        maven-version: 3.9.6
     - name: Build with Maven
       uses: coactions/setup-xvfb@b6b4fcfb9f5a895edadc3bc76318fae0ac17c8b3 # v1.0.1
       with: