fix unsupported logging format check

[qequ]

Type of Changes

	Type
✓	🐛 Bug fix
	✨ New feature
	🔨 Refactoring
	📜 Docs

Description

This PR fixes a false positive in the logging-unsupported-format checker when logging statements contain format-like strings but no arguments are supplied.

Closes #10752

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.98%. Comparing base (6f7f8db) to head (00b9d7e).
⚠️ Report is 6 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #10758   +/-   ##
=======================================
  Coverage   95.98%   95.98%           
=======================================
  Files         176      176           
  Lines       19540    19561   +21     
=======================================
+ Hits        18755    18776   +21     
  Misses        785      785           

Files with missing lines	Coverage Δ
pylint/checkers/logging.py	94.80% <100.00%> (+0.03%)	⬆️

... and 2 files with indirect coverage changes

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[github-actions]

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

This comment was generated for commit 00b9d7e

[DanielNoord]

Could you add a functional test for this behaviour? :)

[Pierre-Sassoulas]

I think there's a decision to take here because 'fixing' this might make the checker useless (it won't detect % when one wanted to do %d or it won't detect %test). I.e. it's possible that this checker cannot work without some false positives. I was absolutely sure that the original issue was a duplicate but I haven't been able to find another issue talking about it (Maybe #9999 ?), so there's already a MR for this (which isn't nice if we're going to reject in the end)