Add image release GitHub Actions (#3)

.github/workflows/release.yaml

@@ -0,0 +1,41 @@
+name: Release
+on:
+  push:
+    tags:
+      - "v*"
+jobs:
+  release:
+    name: Release
+    runs-on: ubuntu-latest
+    env:
+      IMAGE_NAME: broom
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Set up Go
+        uses: actions/setup-go@v4
+        with:
+          go-version-file: go.mod
+      - name: Set tag
+        id: vars
+        run: echo ::set-output name=tag::${GITHUB_REF#refs/*/}
+      - name: Build and push
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: |
+            ghcr.io/${{ github.repository }}:latest
+            ghcr.io/${{ github.repository }}:${{ steps.vars.outputs.tag }}