Update workflow to publish to Docker Hub instead of GHCR

Author: keyvisions

.github/workflows/publish-image.yml

@@ -15,7 +15,6 @@ permissions:
   id-token: write
 
 env:
-  REGISTRY: ghcr.io
   IMAGE_NAME: spintheweb/webspinner
 
 jobs:
@@ -39,18 +38,17 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
-      - name: Log in to GHCR
+      - name: Log in to Docker Hub
         uses: docker/login-action@v3
         with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
 
       - name: Docker metadata
         id: meta
         uses: docker/metadata-action@v5
         with:
-          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          images: ${{ env.IMAGE_NAME }}
           tags: |
             type=semver,pattern=v{{major}}.{{minor}}.{{patch}}
             type=ref,event=branch
@@ -81,7 +79,7 @@ jobs:
       - name: Generate artifact attestation
         uses: actions/attest-build-provenance@v1
         with:
-          subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          subject-name: ${{ env.IMAGE_NAME }}
           subject-digest: ${{ steps.build-and-push-image.outputs.digest }}
           push-to-registry: true
 
@@ -91,4 +89,4 @@ jobs:
     steps:
       - name: Image summary
         run: |
-          echo "Image pushed: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}@${{ needs.build-and-push.outputs.image-ref }}"
+          echo "Image pushed: ${{ env.IMAGE_NAME }}@${{ needs.build-and-push.outputs.image-ref }}"