chore: ✅ Update pre-commit hooks (#639)

Pre-commit hooks have been updated successfully without conflicts.

Author: PasteurBot

.pre-commit-config.yaml

@@ -29,7 +29,7 @@ repos:
 
   - repo: https://github.com/astral-sh/ruff-pre-commit
     # Ruff version.
-    rev: v0.15.20
+    rev: v0.15.21
     hooks:
       # Run the linter.
       - id: ruff