MAINT: Bump grpcio from 1.63.0 to 1.64.0 in /.devcontainer/codespaces…

…-docs in the grpc-deps group (#3123)

MAINT: Bump grpcio

Bumps the grpc-deps group in /.devcontainer/codespaces-docs with 1 update: [grpcio](https://github.com/grpc/grpc).


Updates `grpcio` from 1.63.0 to 1.64.0
- [Release notes](https://github.com/grpc/grpc/releases)
- [Changelog](https://github.com/grpc/grpc/blob/master/doc/grpc_release_schedule.md)
- [Commits](grpc/grpc@v1.63.0...v1.64.0)

---
updated-dependencies:
- dependency-name: grpcio
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: grpc-deps
...

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