Replace incomplete module markers (#14030)

pyrightconfig.stricter.json

@@ -8,8 +8,10 @@
     "exclude": [
         // test cases use a custom pyrightconfig file
         "**/@tests/test_cases",
+        "stdlib/__main__.pyi",
         "stdlib/distutils/command",
         "stdlib/distutils/dist.pyi",
+        "stdlib/encodings/__init__.pyi",
         "stdlib/lib2to3/fixes/*.pyi",
         "stdlib/numbers.pyi",
         "stdlib/optparse.pyi",
@@ -38,6 +40,7 @@
         "stubs/defusedxml",
         "stubs/docker",
         "stubs/docutils",
+        "stubs/flake8-typing-imports",
         "stubs/Flask-SocketIO",
         "stubs/fpdf2",
         "stubs/gdb",
@@ -79,6 +82,7 @@
         "stubs/Pygments",
         "stubs/PyMySQL",
         "stubs/python-crontab",
+        "stubs/python-datemath",
         "stubs/python-dateutil",
         "stubs/python-http-client",
         "stubs/python-jose",