build(deps): bump the grpc group with 2 updates

Bumps the grpc group with 2 updates: [grpcio](https://github.com/grpc/grpc) and [grpcio-tools](https://github.com/grpc/grpc).


Updates `grpcio` from 1.76.0 to 1.78.0
- [Release notes](https://github.com/grpc/grpc/releases)
- [Commits](grpc/grpc@v1.76.0...v1.78.0)

Updates `grpcio-tools` from 1.76.0 to 1.78.0
- [Release notes](https://github.com/grpc/grpc/releases)
- [Commits](grpc/grpc@v1.76.0...v1.78.0)

---
updated-dependencies:
- dependency-name: grpcio
  dependency-version: 1.78.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: grpc
- dependency-name: grpcio-tools
  dependency-version: 1.78.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: grpc
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pyproject.toml

@@ -8,8 +8,8 @@ build-backend = "setuptools.build_meta"
 name = "robotframework-browser"
 version = "19.12.4"
 dependencies = [
-    "grpcio == 1.76.0",
-    "grpcio-tools == 1.76.0",
+    "grpcio == 1.78.0",
+    "grpcio-tools == 1.78.0",
     "protobuf == 6.33.5",
     "robotframework >= 6.1.1, < 9.0.0",
     "robotframework-pythonlibcore >= 4.4.1, < 5.0.0",