test_socket: BasicUDPLITETest fails on Linux 7.1 and newer

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Bug report

test_socket.BasicUDPLITETest started to fail on "s390x Fedora Rawhide 3.x" buildbots:

• PASS: https://buildbot.python.org/#/builders/538/builds/7614
• FAIL: https://buildbot.python.org/#/builders/538/builds/7615

The difference between build 7614 and build 7615 is that the Linux kernel was updated from 7.0 (7.0.0-62.fc45.s390x) to 7.1 (7.1.0-0.rc3.23.fc45.s390x).

The UDP Lite protocol has been removed in Linux kernel 7.1: https://www.phoronix.com/news/Linux-7.1-Retiring-UDP-Lite.

Linked PRs

• gh-149776: Skip UDP Lite tests if it's not supported #149777
• [3.15] gh-149776: Skip UDP Lite tests if it's not supported (GH-149777) #149780
• [3.14] gh-149776: Skip UDP Lite tests if it's not supported (GH-149777) #149781
• [3.13] gh-149776: Skip UDP Lite tests if it's not supported (GH-149777) #149782