Change mpiexec to srun in the task ex-scripts

[chan-hoo]

Description

• Changes the mpi run command from mpiexec to srun in the task ex-scripts.
• Fix the path issues on the input data files.

Anticipated changes to regression tests:

• Is baseline change expected ?

Subcomponents involved:

• apply_incr.fd (NOAA-PSL/land-apply_jedi_incr)
• ufsLand.fd (NOAA-EPIC/ufs-land-driver-emc-dev)
• ufs_model.fd (ufs-community/ufs-weather-model)
• vector2tile_converter.fd (NOAA-PSL/land-vector2tile)
• none

Linked PR's and Issues:

Solves Issue #116

Testing (for CM's):

• RDHPCS
  • Hera
  • Orion
  • Hercules
  • Derecho
• CI
  • Completed
• PW-Clouds
  • AWS
  • AZURE
  • GCP

[chan-hoo]

On Hera:

    Start 1: test_vector2tile
1/7 Test #1: test_vector2tile .................   Passed    2.76 sec
    Start 2: test_create_ens
2/7 Test #2: test_create_ens ..................   Passed    4.80 sec
    Start 3: test_letkfoi_snowda
3/7 Test #3: test_letkfoi_snowda ..............   Passed   22.40 sec
    Start 4: test_apply_jediincr
4/7 Test #4: test_apply_jediincr ..............   Passed    2.20 sec
    Start 5: test_tile2vector
5/7 Test #5: test_tile2vector .................   Passed    2.83 sec
    Start 6: test_land_driver
6/7 Test #6: test_land_driver .................   Passed    9.22 sec
    Start 7: test_ufs_datm_land
7/7 Test #7: test_ufs_datm_land ...............   Passed   58.15 sec

100% tests passed, 0 tests failed out of 7

[jkbk2004]

Nice update with mpi run command options!