chore(deps): bump grpcio from 1.76.0 to 1.78.0

Bumps [grpcio](https://github.com/grpc/grpc) 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
...

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

Author: dependabot[bot]

pyproject.toml

@@ -16,7 +16,7 @@ requires-python = ">=3.10, <3.14"
 dependencies = [
     "grpcio-tools==1.76.0",
     "protobuf==6.33.5",
-    "grpcio==1.76.0",
+    "grpcio==1.78.0",
     "cryptography==46.0.4",
     "python-dotenv==1.2.1",
     "requests>=2.32.4",