GnuTests: bump GNU version to 9.11

[oech3]

No description provided.

[github-actions]

GNU testsuite comparison:

GNU test failed: tests/cksum/md5sum-bsd. tests/cksum/md5sum-bsd is passing on 'main'. Maybe you have to rebase?
GNU test failed: tests/cp/cp-a-selinux. tests/cp/cp-a-selinux is passing on 'main'. Maybe you have to rebase?
GNU test failed: tests/cp/debug. tests/cp/debug is passing on 'main'. Maybe you have to rebase?
GNU test failed: tests/cp/fail-perm. tests/cp/fail-perm is passing on 'main'. Maybe you have to rebase?
GNU test failed: tests/cut/cut. tests/cut/cut is passing on 'main'. Maybe you have to rebase?
GNU test failed: tests/date/date. tests/date/date is passing on 'main'. Maybe you have to rebase?
GNU test failed: tests/du/files0-from. tests/du/files0-from is passing on 'main'. Maybe you have to rebase?
GNU test failed: tests/factor/factor. tests/factor/factor is passing on 'main'. Maybe you have to rebase?
GNU test failed: tests/head/head-write-error. tests/head/head-write-error is passing on 'main'. Maybe you have to rebase?
GNU test failed: tests/install/install-C. tests/install/install-C is passing on 'main'. Maybe you have to rebase?
GNU test failed: tests/mv/dir2dir. tests/mv/dir2dir is passing on 'main'. Maybe you have to rebase?
GNU test failed: tests/mv/mv-exchange. tests/mv/mv-exchange is passing on 'main'. Maybe you have to rebase?
GNU test failed: tests/numfmt/numfmt. tests/numfmt/numfmt is passing on 'main'. Maybe you have to rebase?
GNU test failed: tests/od/od-float. tests/od/od-float is passing on 'main'. Maybe you have to rebase?
GNU test failed: tests/od/od-j. tests/od/od-j is passing on 'main'. Maybe you have to rebase?
GNU test failed: tests/ptx/ptx-overrun. tests/ptx/ptx-overrun is passing on 'main'. Maybe you have to rebase?
GNU test failed: tests/pwd/pwd-long. tests/pwd/pwd-long is passing on 'main'. Maybe you have to rebase?
GNU test failed: tests/rm/inaccessible. tests/rm/inaccessible is passing on 'main'. Maybe you have to rebase?
GNU test failed: tests/shuf/shuf. tests/shuf/shuf is passing on 'main'. Maybe you have to rebase?
GNU test failed: tests/sort/sort-merge-fdlimit. tests/sort/sort-merge-fdlimit is passing on 'main'. Maybe you have to rebase?
GNU test failed: tests/stat/stat-fmt. tests/stat/stat-fmt is passing on 'main'. Maybe you have to rebase?
GNU test failed: tests/tr/tr. tests/tr/tr is passing on 'main'. Maybe you have to rebase?
Skip an intermittent issue tests/date/date-locale-hour (fails in this run but passes in the 'main' branch)
Skipping an intermittent issue tests/rm/isatty (passes in this run but fails in the 'main' branch)
Note: The gnu test tests/basenc/bounded-memory is now being skipped but was previously passing.

[sylvestre]

what is funny with that list is that probably @oech3 or myself caused some regressions :)

[oech3]

Yes. I added some tests based on issues opened by me whici is not fixed yet.