ci: install docker explicitly

.forgejo/workflows/test.yml

@@ -18,6 +18,14 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
 
+      - name: Install Docker
+        run: |
+          apt-get update &&
+          apt-get -qy full-upgrade &&
+          apt-get install -qy curl &&
+          apt-get install -qy curl &&
+          curl -sSL https://get.docker.com/ | sh
+
       - uses: pnpm/action-setup@v3
       - uses: actions/setup-node@v4
         with: