refactor: bump ruff's minimum python version to 3.8 and remove remaining python 3.7 code

[bellini666]

No description provided.

[bellini666]

@patrick91 This module is not needed anymore. Should we change all callsites to import from functools directly and remove this?

[patrick91]

yup!

[bellini666]

Done!

[botberry]

Thanks for adding the RELEASE.md file!

Here's a preview of the changelog:

---

This release updates Strawberry's codebase to use new features in Python 3.8.
It also removes backports.cached-property from our dependencies, as we can
now rely on the standard library's functools.cached_property.

---

Here's the preview release card for twitter:

Here's the tweet text:

🆕 Release (next) is out! Thanks to Thiago Bellini Ribeiro for the PR 👏

Get it here 👉 https://github.com/strawberry-graphql/strawberry/releases/tag/(next)

[codspeed-hq]

CodSpeed Performance Report

Merging #2995 will not alter performance

_{Comparing bellini666:3_7 (5b330c7) with main (306e3db)}

Summary

✅ 12 untouched benchmarks

[codecov]

Codecov Report

Merging #2995 (5b330c7) into main (306e3db) will increase coverage by 0.03%.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2995      +/-   ##
==========================================
+ Coverage   96.47%   96.50%   +0.03%     
==========================================
  Files         469      468       -1     
  Lines       29144    29109      -35     
  Branches     3587     3582       -5     
==========================================
- Hits        28116    28091      -25     
+ Misses        840      835       -5     
+ Partials      188      183       -5     

[bellini666]

@patrick91 the tests are fine other than the lack of a RELEASE.md file.

Do you think we need to make a release for this change? It is mostly internal refactoring stuff

[patrick91]

Looks good, I've added a release file, and removed backports.cached-property from the deps 😊

[bellini666]

Looks good, I've added a release file, and removed backports.cached-property from the deps blush

Awesome! Forgot to do that :)