www/chromium: update to 126.0.6478.126

Security: https://vuxml.freebsd.org/freebsd/2b68c86a-32d5-11ef-8a0f-a8a1599412c6.html
(cherry picked from commit 54898b9a6952cbf38e21ea3b3dd6313c1402ed0b)
(cherry picked from commit 049d204f2bd3db516377f98db8a00322cf08ad84)