no_selinux -> filter_xattrs

[ThomasWaldmann]

Originally, we only wanted to get rid of selinux xattrs, but macOS also uses some xattr keys that disturb our test results, so we filter them also.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.04%. Comparing base (3419d93) to head (fefb27e).
⚠️ Report is 17 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #9212      +/-   ##
==========================================
+ Coverage   81.02%   81.04%   +0.01%     
==========================================
  Files          80       80              
  Lines       13775    13778       +3     
  Branches     2054     2056       +2     
==========================================
+ Hits        11161    11166       +5     
+ Misses       1941     1940       -1     
+ Partials      673      672       -1     

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[github-actions]

Backport failed for 1.4-maint, because it was unable to cherry-pick the commit(s).

Please cherry-pick the changes locally and resolve any conflicts.

git fetch origin 1.4-maint
git worktree add -d .worktree/backport-9212-to-1.4-maint origin/1.4-maint
cd .worktree/backport-9212-to-1.4-maint
git switch --create backport-9212-to-1.4-maint
git cherry-pick -x fefb27e7321e32a91bdbd9e4424b5d4039ea6717