Update .forgejo/workflows/build.yaml

.forgejo/workflows/build.yaml

@@ -11,11 +11,14 @@ jobs:
     container:
       image: docker:cli
     steps:
+      - name: Install git
+        run: apk add --no-cache git
+
       - name: Checkout Continuwuity
-        uses: actions/checkout@v4
-        with:
-          repository: ember/continuwuity
-          ref: ${{ github.event.client_payload.ref || 'main' }}
+        run: |
+          REF=${{ github.event.client_payload.ref || 'main' }}
+          git clone --depth 1 --branch "${REF##refs/heads/}" \
+            http://forgejo.tooling.svc.cluster.local:3000/ember/continuwuity.git .
 
       - name: Build container image
         run: |