www/chromium: update to 103.0.5060.114

Note that the distfile is temporarily hosted on Robert's server as
the official tarballs are not being generated at the moment.

Security: 744ec9d7-fe0f-11ec-bcd2-3065ec8fd3ec
(cherry picked from commit 7a3bfdb8ce8f25f3f1d346c317cc3c6b89d066ed)