automatically publish coatjava build to github release assets

Author: baltzell

.github/workflows/maven.yml

@@ -133,11 +133,28 @@ jobs:
       - name: test run-groovy
         run: coatjava/bin/run-groovy validation/advanced-tests/test-run-groovy.groovy
 
+  release:
+    needs: [ build ]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/download-artifact@v4
+        with:
+          name: build_ubuntu-latest
+      - name: Release
+        uses: softprops/action-gh-release@v2
+        if: startsWith(github.ref, 'refs/tags/')
+        with:
+          files: coatjava.tar.gz
+        env:
+          GITHUB_TOKEN:  ${{ secrets.GITHUB_TOKEN }}
+
   final:
     needs:
       - build
       - test_coatjava
       - test_run-groovy
+      - release
     runs-on: ubuntu-latest
     steps:
       - name: pass