chore: add package bugs metadata

[YfengJ]

Summary

• add npm bugs.url metadata for react-query-swagger
• point the metadata at the repository GitHub issues page
• leave runtime code, dependencies, version, and package contents unchanged

Validation

• node -e "const p=require('./src/package.json'); ..."
• git diff --check
• npm pack --dry-run --ignore-scripts --json ./src