CI upgrade pyupgrade

[MarcoGorelli]

Issue here is:

1. in .pre-commit-config.yaml, change the ref of pyupgrade from v2.7.4 to v2.9.0
2. run pre-commit run pyupgrade --all-files
3. run pre-commit run flake8 --all-files - there will be lots of errors from unused imports, so you should remove them (or you could look into using autoflake to do it for you)
4. if both pre-commit run flake8 --all-files and pre-commit run pyupgrade --all-files both pass, then open a pull request 🚀

---

xref #39521

[gunjan-solanki]

take