chore: monthly updates (#660)

Signed-off-by: Henry Schreiner <henryfs@princeton.edu>

Author: henryiii

.pre-commit-config.yaml

@@ -1,6 +1,7 @@
 ci:
   autoupdate_commit_msg: "chore(deps): update pre-commit hooks"
   autofix_commit_msg: "style: pre-commit fixes"
+  autoupdate_schedule: "monthly"
 
 repos:
 - repo: https://github.com/pre-commit/pre-commit-hooks