Remove cpus-per-task from APRUN_OCNANALECEN on WCOSS2

[RussTreadon-NOAA]

Description

Job gdas_ocnanalecen fails on WCOSS2 when running g-w CI C48mx500_hybAOWCDA. The failure is due to an invalid option on the mpiexec line.

^[[38;5;39m2025-01-07 19:21:20,262 - DEBUG    - marine_recenter: Executing mpiexec -l -n 16 --cpus-per-task=1 /lfs/h2/emc/da/noscrub/russ.treadon/git/global-workflow/test/exec/gdas_soca_gridgen.x /lfs/h2/emc/da/noscrub/russ.treadon/git/global-workflow/test/sorc/gdas.cd/parm/soca/gridgen/gridgen.yaml^[[0m
mpiexec: unrecognized option '--cpus-per-task=1'

This PR removes --cpus-per-task from WCOSS2.env.

Resolves #3158

Type of change

• Bug fix (fixes something broken)

Change characteristics

• Is this a breaking change (a change in existing functionality)? NO. This PR restores a broken functionality
• Does this change require a documentation update? NO
• Does this change require an update to any of the following submodules? NO

How has this been tested?

• Clone, build, and cycled test on WCOSS2 (Cactus)

Checklist

• Any dependent changes have been merged and published
• My code follows the style guidelines of this project
• I have performed a self-review of my own code

[RussTreadon-NOAA]

@WalterKolczynski-NOAA: I reported this bug about one month ago (12/11). I encountered this problem again when I ran g-w CI on Cactus yesterday (1/7). Since nothing has been done since opening #3158, I decided to create a branch, commit the fix, and open this PR. Not sure if I'm jumping the gun or working outside the normal procedure but I'd like to see this problem fixed so developers, myself included, don't trip over it.

[aerorahul]

Since WCOSS2 does not cover the AOWCDA test, I am going to merge this hotfix.

[RussTreadon-NOAA]

Thank you, @aerorahul, for the quick action!