Update pyupgrade requirement from ~=3.17 to ~=3.18

Updates the requirements on [pyupgrade](https://github.com/asottile/pyupgrade) to permit the latest version.
- [Commits](asottile/pyupgrade@v3.17.0...v3.18.0)

---
updated-dependencies:
- dependency-name: pyupgrade
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

requirements-dev.txt

@@ -2,5 +2,5 @@
 packaging~=24.1
 pre-commit~=4.0
 PyGithub~=2.4
-pyupgrade~=3.17
+pyupgrade~=3.18
 yamllint~=1.35