Bumps mypy from 0.812 to 0.901.

Author: sanders41

.pre-commit-config.yaml

@@ -18,7 +18,7 @@ repos:
       language_version: python3
       args: [--line-length=100]
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v0.812
+    rev: v0.901
     hooks:
     - id: mypy
       files: async_search_client/