chore(deps): bump the opamp-client-node group

Bumps the opamp-client-node group in /packages/opamp-client-node with 2 updates: [undici](https://github.com/nodejs/undici) and [@bufbuild/buf](https://github.com/bufbuild/buf).


Updates `undici` from 6.24.0 to 6.24.1
- [Release notes](https://github.com/nodejs/undici/releases)
- [Commits](nodejs/undici@v6.24.0...v6.24.1)

Updates `@bufbuild/buf` from 1.65.0 to 1.66.1
- [Release notes](https://github.com/bufbuild/buf/releases)
- [Changelog](https://github.com/bufbuild/buf/blob/main/CHANGELOG.md)
- [Commits](bufbuild/buf@v1.65.0...v1.66.1)

---
updated-dependencies:
- dependency-name: undici
  dependency-version: 6.24.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: opamp-client-node
- dependency-name: "@bufbuild/buf"
  dependency-version: 1.66.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: opamp-client-node
...

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Author: dependabot[bot]