chore(deps): update docker/login-action action to v4

Author: renovate[bot]

.github/workflows/ci.yaml

@@ -49,7 +49,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - name: Login GHCR
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}