[APP] Create release workflow

Author: Sytten

.github/workflows/release.yml

@@ -0,0 +1,19 @@
+name: Release
+on:
+  release:
+    types: [published]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out the repo
+        uses: actions/checkout@v2
+
+      - name: Build and push image
+        uses: docker/build-push-action@v1
+        with:
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+          registry: docker.pkg.github.com
+          repository: sytten/anveosms/anveosms
+          tag_with_ref: true