feat: mysql-bkup v2 on bkupkit

MysQL backup and restore built on the shared bkupkit core:
streaming end to end, with no dump held in memory or written to
local disk.

.github/workflows/release.yml

@@ -14,18 +14,18 @@ jobs:
     steps:
       -
         name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
+        uses: docker/setup-qemu-action@v4
       -
         name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
       -
         name: Login to DockerHub
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
       - name: Log in to GHCR
-        uses: docker/login-action@v2
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
@@ -34,18 +34,29 @@ jobs:
         name: Get the tag name
         id: get_tag_name
         run: echo "TAG_NAME=${GITHUB_REF#refs/tags/}" >> $GITHUB_ENV
+      -
+        name: Image tags
+        id: meta
+        uses: docker/metadata-action@v6
+        with:
+          images: |
+            ${{ vars.BUILDKIT_IMAGE || 'jkaninda/mysql-bkup' }}
+            ghcr.io/${{ vars.BUILDKIT_IMAGE || 'jkaninda/mysql-bkup' }}
+          # v2.1.3 -> v2.1.3, 2.1.3, 2.1, 2 and latest (immutable semver tags next to latest)
+          tags: |
+            type=raw,value=${{ env.TAG_NAME }}
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+            type=raw,value=latest
       -
         name: Build and push
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v7
         with:
           push: true
           file: "./Dockerfile"
           platforms: linux/amd64,linux/arm64,linux/arm/v7
           build-args: |
             appVersion=${{ env.TAG_NAME }}
-          tags: |
-            "${{vars.BUILDKIT_IMAGE}}:${{ env.TAG_NAME }}"
-            "${{vars.BUILDKIT_IMAGE}}:latest"
-            "ghcr.io/${{vars.BUILDKIT_IMAGE}}:${{ env.TAG_NAME }}"
-            "ghcr.io/${{vars.BUILDKIT_IMAGE}}:latest"
-
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}