fix: install docker cli in forgejo workflow

.gitea/workflows/build-and-update-gitops.yml

@@ -13,6 +13,11 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Install Docker CLI
+        run: |
+          apt-get update
+          apt-get install -y docker.io
+
       - name: Log in to registry
         run: |
           echo "${{ secrets.REGISTRY_PASSWORD }}" | docker login registry.nxtgauge.com -u "${{ secrets.REGISTRY_USERNAME }}" --password-stdin