WE2E test "GST_release_public_v1" fails on most platforms due to running out of wallclock time

[mkavulich]

Issue migrated from regional_workflow repository and updated for current state of problem: ufs-community/regional_workflow#490

Expected behavior

The GST_release_public_v1 test should be able to run in a reasonable amount of time, and it should run to completion before hitting wallclock time limits.

Current behavior

On most platforms, the test does not run completely by the end of the wallclock limits. The run_fcst task will time out well before finishing.

Machines affected

Cheyenne (gnu, intel), Jet (intel), and Orion (intel) all see this problem. Hera is the only platform where it seems to succeed, and even there it does not succeed every time. This issue likely affects other platforms as well, these are the only ones I have access to test personally.

Steps To Reproduce

1. Build the code on one of the affected platforms
2. Run the GST_release_public_v1 WE2E test, either on its own or with other tests
3. Observe that the run_fcst task does not complete before running out of wallclock time.

Additional Information (optional)

The easiest solution would be to increase wallclock time for the run_fcst task, but I suspect the problem needs to be addressed at a deeper level, as this task would previously run much quicker.