feat: build and push docker image to ghcr workflow

.github/workflows/build-and-push-ghcr.yml

@@ -0,0 +1,41 @@
+name: Build and Push Docker Image to GHCR
+
+on:
+  push:
+    tags:
+      - "v*.*.*"
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to GitHub Container Registry (GHCR)
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract semver version
+        id: extract_version
+        run: echo "VERSION=${GITHUB_REF#refs/tags/}" >> $GITHUB_OUTPUT
+
+      - name: Build and push Docker image with GHA cache
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: ghcr.io/${{ github.repository_owner }}/pulsebridge:${{ steps.extract_version.outputs.VERSION }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max