graphics/mesa: Update to 24.1.5

Release notes: https://lists.freedesktop.org/archives/mesa-dev/2024-May/226222.html
Release notes: https://lists.freedesktop.org/archives/mesa-dev/2024-June/226223.html
Release notes: https://lists.freedesktop.org/archives/mesa-dev/2024-June/226249.html
Release notes: https://lists.freedesktop.org/archives/mesa-dev/2024-July/226272.html
Release notes: https://lists.freedesktop.org/archives/mesa-dev/2024-July/226279.html
Release notes: https://lists.freedesktop.org/archives/mesa-dev/2024-July/226289.html

Sponsored by: Beckhoff Automation GmbH & Co. KG
Differential Revision: https://reviews.freebsd.org/D46229