Add exclude pytest plugin to mypy config

Author: smialy

packages/catalystwan-core/pyproject.toml

@@ -76,7 +76,7 @@ where = ["src"]
 
 [tool.mypy]
 files = "src"
-exclude="loader\\.py$"
+exclude="loader|tests\\.py$"
 mypy_path = "$MYPY_CONFIG_FILE_DIR/src/"
 namespace_packages = true
 explicit_package_bases = true