Update docker/login-action action to v4

Author: renovate[bot]

.github/workflows/build.yaml

@@ -19,7 +19,7 @@ jobs:
     runs-on: blacksmith-2vcpu-ubuntu-2404
     steps:
       - name: Login to DockerHub
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           username: tobix
           password: ${{ secrets.DOCKERHUB_TOKEN }}