Fix pyright tests to match expected pyright output after pyright 1.1.380

[filbranden]

Summary

Update the pyright test to match output after pyright 1.1.380, this change was introduced in microsoft/pyright#8896 and the posted comment from github-actions bot in that PR shows the expected diff on attrs.

Fixes #1347.

Pull Request Check List

• Do not open pull requests from your main branch – use a separate branch!
• Added tests for changed code.
• (N/A) New features have been added to our Hypothesis testing strategy.
• (N/A) Changes or additions to public APIs are reflected in our type stubs (files ending in .pyi).
• (N/A) Updated documentation for changed code.
• (N/A) Documentation in .rst and .md files is written using semantic newlines.
• (N/A) Changes (and possible deprecations) have news fragments in changelog.d.
• Consider granting push permissions to the PR branch, so maintainers can fix minor issues themselves without pestering you.

[hynek]

great, thank you!