[pre-commit.ci] pre-commit autoupdate (pydata#153)

updates:
- [github.com/keewis/blackdoc: v0.3.6 → v0.3.7](keewis/blackdoc@v0.3.6...v0.3.7)
- [github.com/pre-commit/mirrors-mypy: v0.971 → v0.981](pre-commit/mirrors-mypy@v0.971...v0.981)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

.pre-commit-config.yaml

@@ -19,7 +19,7 @@ repos:
     hooks:
       - id: black
   - repo: https://github.com/keewis/blackdoc
-    rev: v0.3.6
+    rev: v0.3.7
     hooks:
       - id: blackdoc
   - repo: https://github.com/PyCQA/flake8
@@ -32,7 +32,7 @@ repos:
   #     - id: velin
   #       args: ["--write", "--compact"]
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v0.971
+    rev: v0.981
     hooks:
       - id: mypy
         # Copied from setup.cfg