update pre-commit hooks (mypy) (#4883)

Author: mathause

.pre-commit-config.yaml

@@ -30,7 +30,7 @@ repos:
   #     - id: velin
   #       args: ["--write", "--compact"]
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v0.790
+    rev: v0.800
     hooks:
       - id: mypy
         exclude: "properties|asv_bench"

setup.cfg

@@ -164,6 +164,8 @@ force_to_top = true
 default_section = THIRDPARTY
 known_first_party = xarray
 
+[mypy]
+
 # Most of the numerical computing stack doesn't have type annotations yet.
 [mypy-affine.*]
 ignore_missing_imports = True