Fix use-sequence-for-iteration when unpacking a set with *

[clavedeluna]

Type of Changes

	Type
✓	🐛 Bug fix

Description

Closes #5788

[coveralls]

Pull Request Test Coverage Report for Build 3781183585

• 12 of 12 (100.0%) changed or added relevant lines in 2 files are covered.
• 14 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.002%) to 95.447%

---

Files with Coverage Reduction	New Missed Lines	%
pylint/checkers/variables.py	14	97.38%

Totals
Change from base Build 3752298849:	0.002%
Covered Lines:	17672
Relevant Lines:	18515

---

💛 - Coveralls

[Pierre-Sassoulas]

LGTM !

[jacobtylerwalls]

Thanks! Would you mind doing a recursive search? We should have some utils for this.

This fails ⬇️

def deduplicate_nested_sets(input1, input2, input3, input4):
    for thing in {{*input1, *input2}, {*input3, *input4}}:
        print(thing)

[github-actions]

🤖 According to the primer, this change has no effect on the checked open source code. 🤖🎉

This comment was generated for commit d634048

[jacobtylerwalls]

👍🏻

[github-actions]

The backport to maintenance/2.15.x failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-maintenance/2.15.x maintenance/2.15.x
# Navigate to the new working tree
cd .worktrees/backport-maintenance/2.15.x
# Create a new branch
git switch --create backport-7975-to-maintenance/2.15.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 cf5ea8a32bcdac0bd889f973272c59599b40af95
# Push it to GitHub
git push --set-upstream origin backport-7975-to-maintenance/2.15.x
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-maintenance/2.15.x

Then, create a pull request where the base branch is maintenance/2.15.x and the compare/head branch is backport-7975-to-maintenance/2.15.x.