Fixes CVE-2024-5687, CVE-2024-5688, CVE-2024-5689, CVE-2024-5690,
CVE-2024-5691, CVE-2024-5692, CVE-2024-5693, CVE-2024-5694,
CVE-2024-5695, CVE-2024-5696, CVE-2024-5697, CVE-2024-5698,
CVE-2024-5699, CVE-2024-5700, CVE-2024-5701.
Firefox 127 requires rust >= 1.76 which is currently not in upstream Guix. So
lets bootstrap one.
I took the liberty of adjusting the comment above rust-firefox-esr to use
better link and properly explain why `rust' is used, since it did not really
match the original wording.
* nongnu/packages/mozilla.scm (firefox): Update to 127.0.
(firefox-rust-1.76): New variable.
(rust-firefox): Re-define to firefox-rust-1.76.
Signed-off-by: Jonathan Brielmaier <jonathan.brielmaier@web.de>