feat: use brotli-stubs package rather than local stubs

Author: snus-kin

pyproject.toml

@@ -42,6 +42,7 @@ docs = [
 
 dev = [
     "basedpyright>=1.31.4",
+    "brotli-stubs>=1.1.0",
     "load-dotenv>=0.1.0",
     "mypy-protobuf>=3.6.0",
     "pre-commit>=4.2.0",