ci/fuzzing: update glib version to 2.72.0
Fixes an issue where on configure, glib's internal gnulib was tripping up the undefined behaviour sanitizer with a divide by 0.
Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this wiki page for instructions on how to get full permissions. Sorry for the inconvenience.
Fixes an issue where on configure, glib's internal gnulib was tripping up the undefined behaviour sanitizer with a divide by 0.