chore(deps): bump the mockotlpserver group

Bumps the mockotlpserver group in /packages/mockotlpserver with 2 updates: [@grpc/grpc-js](https://github.com/grpc/grpc-node) and [@opentelemetry/core](https://github.com/open-telemetry/opentelemetry-js).


Updates `@grpc/grpc-js` from 1.12.4 to 1.12.5
- [Release notes](https://github.com/grpc/grpc-node/releases)
- [Commits](https://github.com/grpc/grpc-node/compare/@grpc/[email protected]...@grpc/[email protected])

Updates `@opentelemetry/core` from 1.29.0 to 1.30.0
- [Release notes](https://github.com/open-telemetry/opentelemetry-js/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-js/blob/main/CHANGELOG.md)
- [Commits](open-telemetry/opentelemetry-js@v1.29.0...v1.30.0)

---
updated-dependencies:
- dependency-name: "@grpc/grpc-js"
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: mockotlpserver
- dependency-name: "@opentelemetry/core"
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: mockotlpserver
...

Signed-off-by: dependabot[bot] <[email protected]>