lib: start & stop GitLab

The image is saved to disk and cached because it is over 1GB, to save bandwidthc.

.forgejo/workflows/end-to-end.yml

@@ -82,7 +82,18 @@ jobs:
     steps:
       - uses: https://code.forgejo.org/actions/checkout@v4
       - uses: ./.forgejo/prepare-end-to-end
-      - run: su forgejo -c "./end-to-end.sh test_federation"
+      - name: install zstd
+        run: |
+          export DEBIAN_FRONTEND=noninteractive
+          apt-get -q install -y -qq zstd
+      - name: cache GitLab OCI image
+        uses: https://code.forgejo.org/actions/cache@v4
+        with:
+          path: |
+            /srv/forgejo-binaries/gitlab
+          key: gitlab
+      - run: |
+          su forgejo -c "./end-to-end.sh test_federation"
       - name: full logs
         if: always()
         run: su forgejo -c "./end-to-end.sh show_logs"