hotfix: faulty workflow version number

adds a `v` to `@4`

Author: Tim-Grube

.github/workflows/publish_release.yml

@@ -30,7 +30,7 @@ jobs:
         uses: actions/checkout@v6
 
       - name: Log in to GitHub Container Registry
-        uses: docker/login-action@4
+        uses: docker/login-action@v4
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
@@ -49,4 +49,4 @@ jobs:
         run: |
           IMAGE=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           docker push $IMAGE:${{ env.RELEASE_TAG }}
-          docker push $IMAGE:latest
+          docker push $IMAGE:latest