Merge branch 'fontawesome-5.15.3' into 'hifis-unified-step-1-after-vc-20210317'

Bump Font-Awesome to version 5.15.3

See merge request hifis/hifis.net!218
9 jobs for !177 with hifis-unified-step-1-after-vc-20210317 in 3 seconds (queued for 2 seconds)
detached
Status Name Job ID Coverage
  Build
canceled build:latest #277083
allowed to fail

00:00:03

canceled build:production #277086

canceled build:production:review-apps #277085

canceled build:production:subpath #277084

00:00:02

 
  Test
canceled test:htmlproofer #277087

canceled test:htmlproofer:subpath #277088

 
  Review
canceled review #277089
review-apps

canceled stop_review #277090
review-apps allowed to fail manual

 
  Accessibility
canceled a11y #277091
allowed to fail