Bump the pip-dependencies group with 4 updates (#407)

Bumps the pip-dependencies group with 4 updates: [grpcio](https://github.com/grpc/grpc), [grpcio-tools](https://github.com/grpc/grpc), [setuptools](https://github.com/pypa/setuptools) and [coverage](https://github.com/nedbat/coveragepy).


Updates `grpcio` from 1.67.1 to 1.68.0
- [Release notes](https://github.com/grpc/grpc/releases)
- [Changelog](https://github.com/grpc/grpc/blob/master/doc/grpc_release_schedule.md)
- [Commits](grpc/grpc@v1.67.1...v1.68.0)

Updates `grpcio-tools` from 1.67.1 to 1.68.0
- [Release notes](https://github.com/grpc/grpc/releases)
- [Changelog](https://github.com/grpc/grpc/blob/master/doc/grpc_release_schedule.md)
- [Commits](grpc/grpc@v1.67.1...v1.68.0)

Updates `setuptools` from 75.3.0 to 75.5.0
- [Release notes](https://github.com/pypa/setuptools/releases)
- [Changelog](https://github.com/pypa/setuptools/blob/main/NEWS.rst)
- [Commits](pypa/setuptools@v75.3.0...v75.5.0)

Updates `coverage` from 7.6.4 to 7.6.7
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](nedbat/coveragepy@7.6.4...7.6.7)

---
updated-dependencies:
- dependency-name: grpcio
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: pip-dependencies
- dependency-name: grpcio-tools
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: pip-dependencies
- dependency-name: setuptools
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: pip-dependencies
- dependency-name: coverage
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: pip-dependencies
...

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

requirements.txt

@@ -5,8 +5,8 @@ certifi==2024.8.30
 charset-normalizer==3.4.0
 debugpy==1.8.8
 docutils==0.21.2
-grpcio==1.67.1
-grpcio-tools==1.67.1
+grpcio==1.68.0
+grpcio-tools==1.68.0
 idna==3.10
 importlib-metadata==8.5.0
 jaraco.classes==3.4.0
@@ -25,10 +25,10 @@ requests-toolbelt==1.0.0
 rfc3986==2.0.0
 rich==13.9.4
 rply==0.7.8
-setuptools==75.3.0
+setuptools==75.5.0
 six==1.16.0
 twine==5.1.1
 urllib3==2.2.3
 webencodings==0.5.1
 zipp==3.21.0
-coverage==7.6.4
+coverage==7.6.7