Bump https://github.com/astral-sh/ruff-pre-commit

Bumps [https://github.com/astral-sh/ruff-pre-commit](https://github.com/astral-sh/ruff-pre-commit) from v0.15.20 to 0.15.21.
- [Release notes](https://github.com/astral-sh/ruff-pre-commit/releases)
- [Commits](astral-sh/ruff-pre-commit@v0.15.20...v0.15.21)

---
updated-dependencies:
- dependency-name: https://github.com/astral-sh/ruff-pre-commit
  dependency-version: 0.15.21
  dependency-type: direct:production
...

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Author: dependabot[bot]

.pre-commit-config.yaml

@@ -14,7 +14,7 @@ repos:
 #####
 # Python
 - repo: https://github.com/astral-sh/ruff-pre-commit
-  rev: v0.15.20
+  rev: v0.15.21
   hooks:
     # Sort imports
     - id: ruff-check