Add step to install required tools in build-docker-image workflow

.gitea/workflows/build-docker-image.yml

@@ -13,6 +13,9 @@ jobs:
       privileged: true
       
     steps:
+
+      - name: Install required tools
+        run: apk add --no-cache git nodejs npm
       # 1. Check out the repo
       - uses: actions/checkout@v4