setup.cfg: move mypy configuration from setup.cfg to pyproject.toml

TOML is a nicer format than the INI format setup.cfg uses.

pyproject.toml

@@ -192,3 +192,17 @@ lines-after-imports = 2
 "src/_pytest/_py/**/*.py" = ["B", "PYI"]
 "src/_pytest/_version.py" = ["I001"]
 "testing/python/approx.py" = ["B015"]
+
+[tool.mypy]
+mypy_path = ["src"]
+check_untyped_defs = true
+disallow_any_generics = true
+disallow_untyped_defs = true
+ignore_missing_imports = true
+show_error_codes = true
+strict_equality = true
+warn_redundant_casts = true
+warn_return_any = true
+warn_unreachable = true
+warn_unused_configs = true
+no_implicit_reexport = true

setup.cfg

@@ -89,17 +89,3 @@ ignore =
 
 [devpi:upload]
 formats = sdist.tgz,bdist_wheel
-
-[mypy]
-mypy_path = src
-check_untyped_defs = True
-disallow_any_generics = True
-disallow_untyped_defs = True
-ignore_missing_imports = True
-show_error_codes = True
-strict_equality = True
-warn_redundant_casts = True
-warn_return_any = True
-warn_unreachable = True
-warn_unused_configs = True
-no_implicit_reexport = True