REVERT: comment out mypy

Author: VeckoTheGecko

pyproject.toml

@@ -305,12 +305,12 @@ ban-relative-imports = "all"
 "pandas.api.types.is_extension_array_dtype".msg = "Use xarray.core.utils.is_allowed_extension_array{_dtype} instead.  Only use the banend API if the incoming data has already been sanitized by xarray"
 
 [tool.pytest.ini_options]
-addopts = [
-  "--strict-config",
-  "--strict-markers",
-  "--mypy-only-local-stub",
-  "--mypy-pyproject-toml-file=pyproject.toml",
-]
+# addopts = [
+#   "--strict-config",
+#   "--strict-markers",
+#   "--mypy-only-local-stub",
+#   "--mypy-pyproject-toml-file=pyproject.toml",
+# ]
 
 # We want to forbid warnings from within xarray in our tests — instead we should
 # fix our own code, or mark the test itself as expecting a warning. So this: