add workflow for publishing docker image

.github/workflows/publish_docker_image.yaml

@@ -0,0 +1,39 @@
+name: Publish Docker image
+
+on:
+  workflow_dispatch:
+  push:
+    tags:
+      - "*"
+
+permissions: write-all
+
+jobs:
+  push_to_registry:
+    name: Push Docker image to GHCR
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out the repo
+        uses: actions/checkout@v4
+
+      - name: Log in to container registry
+        uses: docker/login-action@v3
+        with:
+            registry: ghcr.io
+            username: ${{ github.actor }}
+            password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ghcr.io/leonlatsch/go-resolve
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}