chore(deps): bump grpcio from 1.80.0 to 1.82.1 in /backend/python/coqui (#10922)

Bumps [grpcio](https://github.com/grpc/grpc) from 1.80.0 to 1.82.1.
- [Release notes](https://github.com/grpc/grpc/releases)
- [Commits](grpc/grpc@v1.80.0...v1.82.1)

---
updated-dependencies:
- dependency-name: grpcio
  dependency-version: 1.82.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

backend/python/coqui/requirements.txt

@@ -1,4 +1,4 @@
-grpcio==1.80.0
+grpcio==1.82.1
 protobuf
 certifi
 packaging==26.2