Add .forgejo/workflows/post-release.yml

.forgejo/workflows/post-release.yml

@@ -0,0 +1,39 @@
+name: Post Release - Bump Version
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  bump:
+    runs-on: docker
+    
+    steps:
+      - name: Checkout main
+        uses: actions/checkout@v3
+        with:
+          ref: main
+
+      - name: Set up JDK
+        uses: actions/setup-java@v4
+        with:
+          java-version: 17
+          distribution: 'temurin'
+
+      - name: Bump to next SNAPSHOT version
+        run: |
+          CURRENT=$(echo "${GITHUB_REF##refs/tags/v}")
+          MAJOR=$(echo $CURRENT | cut -d. -f1)
+          MINOR=$(echo $CURRENT | cut -d. -f2)
+          PATCH=$(echo $CURRENT | cut -d. -f3)
+          NEXT_PATCH=$((PATCH + 1))
+          NEXT_VERSION="$MAJOR.$MINOR.$NEXT_PATCH-SNAPSHOT"
+
+          mvn versions:set -DnewVersion=$NEXT_VERSION
+          mvn versions:commit
+
+          git config user.name "forgejo-actions"
+          git config user.email "ci@forgejo.local"
+          git commit -am "Start next development cycle $NEXT_VERSION"
+          git push origin main