[3.12] gh-145548: Use VMADDR_CID_LOCAL in VSOCK socket tests (GH-145589) (#145809)

[3.12] gh-145548: Use VMADDR_CID_LOCAL in VSOCK socket tests (GH-145589) (#145809)

* [3.12] gh-145548: Use VMADDR_CID_LOCAL in VSOCK socket tests (GH-145589) (GH-145594)

Prefer VMADDR_CID_LOCAL instead of VMADDR_CID_ANY for bind() in the
server. Skip the test if bind() fails with EADDRNOTAVAIL.

Log vsock CID in test.pythoninfo.
(cherry picked from commit 6c8c72f7feb4207c62ac857443943e61977d6a94)
(cherry picked from commit 16dbbe5)

* [3.13] gh-145548: Don't use VMADDR_CID_LOCAL from `socket` (GH-145735)

VMADDR_CID_LOCAL was added to `socekt` in 3.14. The test needs a
local constant in setUp(), as in clientSetUp().

Co-authored-by: Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com>
Co-authored-by: Victor Stinner <vstinner@python.org>