ci: Fix toolchain image name, tags, labels

.github/workflows/build-xemu-win64-toolchain.yml

@@ -12,7 +12,7 @@ on:
 
 env:
   REGISTRY: ghcr.io
-  IMAGE_NAME: xemu-win64-toolchain
+  IMAGE_NAME: xemu-project/xemu-win64-toolchain
 
 jobs:
   build-image:
@@ -22,16 +22,20 @@ jobs:
     steps:
       - name: Clone tree
         uses: actions/checkout@v3
-
       - name: Extract image metadata (tags, labels)
         id: meta
         uses: docker/metadata-action@v4.3.0
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
-
+          labels: |
+            org.opencontainers.image.title=xemu-win64-toolchain
+            org.opencontainers.image.description=Toolchain and libraries for building xemu Windows releases
+          tags: |
+            type=raw,value=latest,enable=${{ github.ref == format('refs/heads/{0}', 'master') }}
+            type=ref,event=branch
+            type=sha
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2.2.1
-
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v2
         if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
@@ -39,7 +43,6 @@ jobs:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
-
       - name: Build and push image
         uses: docker/build-push-action@v3.2.0
         with: