chore(deps-dev): bump peggy from 4.0.3 to 4.2.0 (#6740)

Bumps [peggy](https://github.com/peggyjs/peggy) from 4.0.3 to 4.2.0.
- [Release notes](https://github.com/peggyjs/peggy/releases)
- [Changelog](https://github.com/peggyjs/peggy/blob/main/CHANGELOG.md)
- [Commits](peggyjs/peggy@v4.0.3...v4.2.0)

---
updated-dependencies:
- dependency-name: peggy
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

core/package.json

@@ -238,7 +238,7 @@
     "nock": "^12.0.3",
     "nodemon": "^3.1.7",
     "p-event": "^6.0.1",
-    "peggy": "^4.0.3",
+    "peggy": "^4.2.0",
     "prettier": "3.3.3",
     "ps-tree": "^1.2.0",
     "serve-static": "^1.16.0",