Bump ndjson-readablestream from 1.0.7 to 1.2.0 in /app/frontend (#1731)

Bumps [ndjson-readablestream](https://github.com/pamelafox/ndjson-readablestream) from 1.0.7 to 1.2.0.
- [Changelog](https://github.com/pamelafox/ndjson-readablestream/blob/main/CHANGELOG.md)
- [Commits](https://github.com/pamelafox/ndjson-readablestream/commits)

---
updated-dependencies:
- dependency-name: ndjson-readablestream
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Pamela Fox <[email protected]>

Author: dependabot[bot]

app/frontend/package-lock.json

@@ -23,7 +23,7 @@
     "react": "^18.3.1",
     "react-dom": "^18.2.0",
     "react-router-dom": "^6.23.1",
-    "ndjson-readablestream": "^1.0.7",
+    "ndjson-readablestream": "^1.2.0",
     "react-syntax-highlighter": "^15.5.0",
     "scheduler": "^0.20.2"
   },