Update types-protobuf requirement (#228)

---
updated-dependencies:
- dependency-name: types-protobuf
  dependency-version: 5.29.1.20250403
  dependency-type: direct:production
...

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Author: dependabot[bot]

pyproject.toml

@@ -28,7 +28,7 @@ grpcio-tools = "1.70.0"
 jsonpickle = ">=3.0,<4.1"
 pymitter = ">=0.4,<1.1"
 typing-extensions = ">=4.11,<4.13"
-types-protobuf = "5.29.1.20250402"
+types-protobuf = "5.29.1.20250403"
 pympler = "1.1"
 
 [tool.poetry.dev-dependencies]