mo_grid: add fix for rounding down

26 jobs for ceil_grid_bugfix in 37 minutes and 25 seconds (queued for 2 seconds)
Name Stage Failure
check-intel18MPI Check Cases
Traceback (most recent call last):
File "", line 648, in <module>
raise AssertionError("mHM checks were not successful.")
AssertionError: mHM checks were not successful.
Uploading artifacts...
Runtime platform arch=amd64 os=linux pid=251866 revision=a8a019e0 version=12.3.0
check/logs/: found 23 matching files

Uploading artifacts to coordinator... ok
id=355811 responseStatus=201 Created token=4ouLFBaD
ERROR: Job failed: exit status 1