Remove any trace of distutils use as it is going to be removed in python 3.12 (fixes #51532)

[rouault]

No description provided.

[qgis-bot]

The backport to release-3_28 failed:

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

stderr

error: could not apply b1d1f8cbd4... Remove any trace of distutils use as it is going to be removed in python 3.12 (fixes #51532)
hint: After resolving the conflicts, mark them with
hint: "git add/rm <pathspec>", then run
hint: "git cherry-pick --continue".
hint: You can instead skip this commit with "git cherry-pick --skip".
hint: To abort and get back to the state before "git cherry-pick",
hint: run "git cherry-pick --abort".

stdout

CONFLICT (modify/delete): tests/src/python/test_qgsrasterattributetablemodel.py deleted in HEAD and modified in b1d1f8cbd4 (Remove any trace of distutils use as it is going to be removed in python 3.12 (fixes #51532)).  Version b1d1f8cbd4 (Remove any trace of distutils use as it is going to be removed in python 3.12 (fixes #51532)) of tests/src/python/test_qgsrasterattributetablemodel.py left in tree.
Auto-merging tests/src/python/test_qgssymbollayer.py

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-release-3_28 release-3_28
# Navigate to the new working tree
cd .worktrees/backport-release-3_28
# Create a new branch
git switch --create backport-51630-to-release-3_28
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick b1d1f8cbd4af895ca9f70666b9b3b5cd5d09103b,6da295f5d240808e425a5cb3df5419810e1c19a5,abb07fcbeb1c061b51550026bb2045ed54272499
# Push it to GitHub
git push --set-upstream origin backport-51630-to-release-3_28
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-release-3_28

Then, create a pull request where the base branch is release-3_28 and the compare/head branch is backport-51630-to-release-3_28.

[rouault]

manual backport in #51644