feat(handwritten): centralize mypy.ini and update noxfiles

Author: chalmerlowe

packages/bigframes/mypy.ini

@@ -1086,6 +1086,7 @@ def mypy(session):
     shutil.rmtree(".mypy_cache", ignore_errors=True)
     session.run(
         "mypy",
+        "--config-file=../../mypy.ini",
         "bigframes",
         os.path.join("tests", "system"),
         os.path.join("tests", "unit"),

packages/bigframes/noxfile.py

@@ -156,7 +156,8 @@ def mypy(session):
         "types-mock",
         "pytest<8.0.0",
     )
-    session.run("mypy", "-p", "google", "-p", "tests", "-p", "tests_async")
+    session.run("mypy",
+        "--config-file=../../mypy.ini", "-p", "google", "-p", "tests", "-p", "tests_async")
 
 
 @nox.session(python=ALL_PYTHON)

packages/bigquery-magics/mypy.ini

@@ -107,6 +107,7 @@ def mypy(session):
     session.install(".")
     session.run(
         "mypy",
+        "--config-file=../../mypy.ini",
         "-p",
         "google",
         "--check-untyped-defs",

packages/google-auth/mypy.ini

@@ -107,6 +107,7 @@ def mypy(session):
     session.install(".")
     session.run(
         "mypy",
+        "--config-file=../../mypy.ini",
         "-p",
         "google",
         "--check-untyped-defs",