actually install docker llol

.gitea/workflows/build_docker.yaml

@@ -28,7 +28,7 @@ jobs:
           - 5432:5432
 
     steps:
-    - run: apt update && apt install nodejs -y
+    - run: apt update && apt install nodejs docker -y
     - name: Checkout Code
       uses: actions/checkout@v2
     - name: Run migrations