chore: restore mypy.ini and noxfile.py for google-crc32c

Author: chalmerlowe

packages/google-crc32c/mypy.ini

@@ -0,0 +1,3 @@
+[mypy]
+python_version = 3.10
+exclude = tests/unit/resources/

packages/google-crc32c/noxfile.py

@@ -17,22 +17,11 @@
 # Generated by synthtool. DO NOT EDIT!
 
 import os
-import pathlib
 import sys
 
 import nox
 
-CURRENT_DIRECTORY = pathlib.Path(__file__).parent.absolute()
-# Path to the centralized mypy configuration file at the repository root.
-# Search upwards to support running nox from both monorepo packages and integration test goldens.
-MYPY_CONFIG_FILE = next(
-    (
-        str(p / "mypy.ini")
-        for p in CURRENT_DIRECTORY.parents
-        if (p / "mypy.ini").exists()
-    ),
-    str(CURRENT_DIRECTORY.parent.parent / "mypy.ini"),
-)
+HERE = os.path.dirname(__file__)
 
 # Constants
 DEFAULT_PYTHON_VERSION = "3.14"
@@ -95,12 +84,7 @@ def mypy(session):
         "types-setuptools",
     )
     session.env["MYPYPATH"] = "src"
-    session.run(
-        "mypy",
-        f"--config-file={MYPY_CONFIG_FILE}",
-        "src/google_crc32c/",
-        "tests/",
-    )
+    session.run("mypy", "src/google_crc32c/", "tests/")
 
 
 @nox.session(python=DEFAULT_PYTHON_VERSION)