add a release job that generates changelog and publish gh release (#3)

.github/workflows/release.yaml

@@ -11,4 +11,30 @@ jobs:
     with:
       image_tag: ${{ github.ref_name }}
       push: true
-      upload: false
+
+  release:
+    needs: build_and_push
+    name: Release
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Changelog
+        uses: Bullrich/generate-release-changelog@master
+        id: Changelog
+        env:
+          REPO: ${{ github.repository }}
+
+      - name: Create Release
+        id: create_release
+        uses: softprops/action-gh-release@v1
+        with:
+          tag_name: ${{ github.ref_name }}
+          name: ${{ github.ref_name }}
+          body: |
+            ${{ steps.Changelog.outputs.changelog }}
+          draft: false
+          prerelease: false