Ignore pyright errors in sync/async only test files

Author: WouldYouKindly

pyproject.toml

@@ -33,7 +33,9 @@ include = [
 exclude = [
     "**/*_pb2.py",
     "**/*_pb2_grpc.py",
-    "test/test_concrete.py"
+    "test/test_concrete.py",
+    "test/test_sync_only.py",
+    "test/test_async_only.py",
 ]
 
 executionEnvironments = [