ci: extract vercel scope as an env (#30441)

.github/workflows/docs.yml

@@ -90,6 +90,7 @@ jobs:
           ./build.sh
         env:
           VERCEL_TOKEN: ${{ secrets.VERCEL_TOKEN }}
+          VERCEL_SCOPE: ${{ secrets.VERCEL_SCOPE }}
 
   error_reporting:
     needs:

docs/publish-docs.sh

@@ -28,7 +28,7 @@ fi
 cat > "$CONFIG_FILE" <<EOF
 {
   "name": "$PROJECT_NAME",
-  "scope": "solana-labs",
+  "scope": "$VERCEL_SCOPE",
   "redirects": [
     { "source": "/apps", "destination": "/developers" },
     { "source": "/developing/programming-model/overview", "destination": "/developers" },