[pre-commit.ci] autoupdate less frequently

.pre-commit-config.yaml

diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 90e0f73..6c43f39 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -87,3 +87,6 @@
           - pytest
           - tomli
           - types-chardet
+
+ci:
+  autoupdate_schedule: monthly