chore(deps): bump protobufjs and @grpc/grpc-js

Bumps [protobufjs](https://github.com/protobufjs/protobuf.js) and [@grpc/grpc-js](https://github.com/grpc/grpc-node). These dependencies needed to be updated together.

Updates `protobufjs` from 6.11.3 to 7.2.4
- [Release notes](https://github.com/protobufjs/protobuf.js/releases)
- [Changelog](https://github.com/protobufjs/protobuf.js/blob/master/CHANGELOG.md)
- [Commits](protobufjs/protobuf.js@v6.11.3...protobufjs-v7.2.4)

Updates `@grpc/grpc-js` from 1.6.7 to 1.8.17
- [Release notes](https://github.com/grpc/grpc-node/releases)
- [Commits](https://github.com/grpc/grpc-node/compare/@grpc/grpc-js@1.6.7...@grpc/grpc-js@1.8.17)

---
updated-dependencies:
- dependency-name: protobufjs
  dependency-type: indirect
- dependency-name: "@grpc/grpc-js"
  dependency-type: indirect
...

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Author: dependabot[bot]