first try docker build

.gitea/workflows/build_image.yaml

@@ -10,12 +10,12 @@ jobs:
         id: print-to-log
         env:
           REGISTRY: registry.jingoh.fr
-        uses: actions/hello-world-docker-action@main
+        uses: https://github.com/actions/checkout@v3
         with:
           who-to-greet: ${{ env.REGISTRY }}
 
       - name: Checkout private tools
-        uses: actions/checkout@v3
+        uses: https://github.com/actions/checkout@v3
         with:
         # tape git@gitea.jingoh.fr port 22 et pas port 443 cet ane (should be ssh://gitea.jingoh.fr:443/$repository au lieu de ssh://gitea.jingoh.fr:$repository) 
           repository: staffadmin/gitea-runner
@@ -35,7 +35,7 @@ jobs:
 
       # Workaround: https://github.com/docker/build-push-action/issues/461
       - name: Setup Docker buildx
-        uses: docker/setup-buildx-action@v2
+        uses: https://github.com/docker/setup-buildx-action@v2
 
       # Login against a Docker registry except on PR
       # https://github.com/docker/login-action