www/chromium: update to 131.0.6778.139
Security: https://vuxml.freebsd.org/freebsd/aeee5ebd-356c-49c1-8959-7c88981de5fd.html
Security: https://vuxml.freebsd.org/freebsd/3d5b7860-48ad-48c2-aa36-601b8ab9cc43.html
(cherry picked from commit d5403e7eb37c379deb17380bd23d726cc30f580e)