Also update copyright lines, including all those present in the original
gnu/packages/gl.scm from Guix's core-updates branch.  Some may not be related
to the copied mesa code and could be removed after investigating the log.

* nongnu/packages/mesa.scm (mesa-next): Update to 22.3.2.

* nongnu/packages/mesa.scm (mesa-next): Update to 22.3.0.
[phases]{fix-instrfromstring-test}: Remove.  Test has been fixed in upstream
with this release.

* nongnu/packages/mesa.scm (mesa-next): Update to 22.2.2.

* nongnu/packages/mesa.scm (mesa-next)[phases]{fix-instrfromstring-test}: New
phase.  Fix the instrfromstring test which fails on i686 using the upstream change.

* nongnu/packages/mesa.scm (mesa-next): Update to 22.2.1.

* nongnu/packages/steam-client.scm (steam-client-libs): Use mesa-next instead
of mesa. Use llvm instead of llvm-11.

* nongnu/packages/mesa.scm (libva-without-mesa): New variable. This is
unchanged from Guix, but needed locally for mesa to build.
(mesa-next): New variable. This is copied from mesa on the core-updates branch
of Guix.

* nongnu/packages/mesa.scm: New module.
(libdrm-next): New variable. Taken from libdrm on the core-updates branch of
Guix.

Fixes CVE-2023-29531, CVE-2023-29532, CVE-2023-29533, CVE-2023-29534,
CVE-2023-29535, CVE-2023-29536, CVE-2023-29537, CVE-2023-29538,
CVE-2023-29539, CVE-2023-29540, CVE-2023-29541, CVE-2023-29542,
CVE-2023-29543, CVE-2023-29544, CVE-2023-29545, CVE-2023-29546,
CVE-2023-29547, CVE-2023-29548, CVE-2023-29549, CVE-2023-29550,
CVE-2023-29551 and MFSA-TMP-2023-0001.

* nongnu/packages/mozilla.scm (firefox): Update to 112.0.

Fixes CVE-2023-1945, CVE-2023-29531, CVE-2023-29532, CVE-2023-29533,
CVE-2023-29535, CVE-2023-29536, CVE-2023-29539, CVE-2023-29541,
CVE-2023-29542, CVE-2023-29545, CVE-2023-29548, CVE-2023-29550
and MFSA-TMP-2023-0001.

* nongnu/packages/mozilla.scm (firefox-esr): Update to 102.10.0esr.