fix: add protobuf>=6.32.1 to dev deps for mypy-protobuf 5.0.0 compat

Author: corpo-iwillspeak

pyproject.toml

@@ -46,6 +46,7 @@ dev = [
     "load-dotenv>=0.1.0",
     "mypy-protobuf>=3.6.0",
     "pre-commit>=4.2.0",
+    "protobuf>=6.32.1",
     "pytest>=8.4.1",
     "pytest-asyncio>=1.1.0",
     "pytest-cov>=6.2.1",