Bump pyupgrade from 3.15.0 to 3.15.1

Bumps [pyupgrade](https://github.com/asottile/pyupgrade) from 3.15.0 to 3.15.1.
- [Commits](asottile/pyupgrade@v3.15.0...v3.15.1)

---
updated-dependencies:
- dependency-name: pyupgrade
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements/pyupgrade.txt

@@ -1 +1 @@
-pyupgrade==3.15.0
+pyupgrade==3.15.1