GH Actions - release workflow

.github/workflows/release.yml

@@ -0,0 +1,47 @@
+name: Release
+on:
+  release:
+    types: [published]
+
+jobs:
+  release:
+    name: Publish Plugin
+    runs-on: ubuntu-latest
+    steps:
+
+      # Check out current repository
+      - name: Fetch Sources
+        uses: actions/checkout@v2
+
+      # Setup Java 1.8 environment for the next steps
+      - name: Setup Java
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.8
+
+      # Cache Gradle dependencies
+      - name: Setup Cache
+        uses: actions/cache@v1
+        with:
+          path: ~/.gradle/caches
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle') }}
+          restore-keys: ${{ runner.os }}-gradle-
+
+      # Publish plugin to the Marketplace
+      - name: Publish Plugin
+        env:
+          PUBLISH_TOKEN: ${{ secrets.PUBLISH_TOKEN }}
+        run: ./gradlew publishPlugin
+
+      # Commit patched Changelog
+      - name: Commit files
+        run: |
+          git config --local user.email "action@github.com"
+          git config --local user.name "GitHub Action"
+          git commit -m "Update changelog" -a
+
+      # Push changes
+      - name: Push changes
+        uses: ad-m/github-push-action@master
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}