Fix: Increase Node.js heap size for sync-openapi workflow (#58044)

Author: heiskr

.github/workflows/sync-openapi.yml

@@ -57,6 +57,7 @@ jobs:
         env:
           # Needed for gh
           GITHUB_TOKEN: ${{ secrets.DOCS_BOT_PAT_BASE }}
+          NODE_OPTIONS: '--max-old-space-size=8192'
         run: |
           npm run sync-rest -- \
             --source-repos rest-api-description models-gateway \