GH-135357: Add socket.SO_PASSRIGHTS constant (#135355)

Constant added to Linux 6.16. See the LWN article:
https://lwn.net/Articles/1023085/

Co-authored-by: Brian Schubert <brianm.schubert@gmail.com>
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
Co-authored-by: Peter Bierma <zintensitydev@gmail.com>