Fix build

Signed-off-by: henmohr <henriquemohr@redes.ufsm.br>

Author: henmohr

.github/workflows/publish-ghcr.yml

@@ -11,10 +11,10 @@ jobs:
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
 
     - name: Log in to GitHub Container Registry
-      run: echo ${{ secrets.GH_PAT }} | docker login ghcr.io -u ${{ github.actor }} --password-stdin
+      run: echo ${{ secrets.GITHUB_TOKEN }} | docker login ghcr.io -u ${{ github.actor }} --password-stdin
 
     - name: Build Docker image
       run: docker build -t ghcr.io/librecodecoop/nextcloud-images:30 .