Update Hera and GaeaC6 configuration for select JEDI jobs

[RussTreadon-NOAA]

Description

This PR modifies the configuration for the following jobs on the following machines

• Hera: aeroanlvar
• Gaea C6: atmanlvarm, atmensanlobs, atmensanlsol

For each job on each machine the change reduces the number of tasks run per node. it has been observed that some executables require more memory after moving to spack-stack/1.9.2 This is the case for the above jobs on the indicated machines.

Resolves #3862

Type of change

• Maintenance (adjust ppn to avoid OOM error)

Change characteristics

• Is this a breaking change (a change in existing functionality)? *NO
• 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 cycle affected cases on Hera and Gaea C6

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
• New and existing tests pass with my changes
• This change is covered by an existing CI test or a new one has been added

[DavidHuber-NOAA]

Merging based on successful test results by @RussTreadon-NOAA.

[RussTreadon-NOAA]

Thank you @DavidHuber-NOAA for your prompt review, approval, and merge.