Merge pull request 'Update docker/login-action action to v4' (#8) from renovate/docker-login-action-4.x into main

Reviewed-on: #8

.gitea/workflows/build.yml

@@ -13,7 +13,7 @@ jobs:
         with:
           github-server-url: 'https://git.secretmine.de/'
       - name: Login to Registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: git.secretmine.de
           username: ${{ secrets.REGISTRY_USER }}

.github/workflows/build.yml

@@ -14,7 +14,7 @@ jobs:
       - name: Check out repository code
         uses: actions/checkout@v6
       - name: Login to Registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.actor }}