Change conda env to stack-python for plot_stats

[chan-hoo]

Description

• Change the conda environment to the stack-python modules for the plot_stats task.

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:

Resolve Issue #108

Testing (for CM's):

• RDHPCS
  • Hera
  • Orion
  • Jet
  • Gaea
  • Cheyenne
• CI
  • Completed
• PW-Clouds
  • AWS
  • AZURE
  • GCP

[chan-hoo]

On Hera:

    Start 1: test_vector2tile
1/7 Test #1: test_vector2tile .................   Passed    5.27 sec
    Start 2: test_create_ens
2/7 Test #2: test_create_ens ..................   Passed    4.35 sec
    Start 3: test_letkfoi_snowda
3/7 Test #3: test_letkfoi_snowda ..............   Passed   24.74 sec
    Start 4: test_apply_jediincr
4/7 Test #4: test_apply_jediincr ..............   Passed    2.61 sec
    Start 5: test_tile2vector
5/7 Test #5: test_tile2vector .................   Passed    5.07 sec
    Start 6: test_land_driver
6/7 Test #6: test_land_driver .................   Passed   11.69 sec
    Start 7: test_ufs_datm_land
7/7 Test #7: test_ufs_datm_land ...............   Passed   56.31 sec

100% tests passed, 0 tests failed out of 7

Total Test time (real) = 110.08 sec

[chan-hoo]

On Orion:

    Start 1: test_vector2tile
1/7 Test #1: test_vector2tile .................   Passed    8.53 sec
    Start 2: test_create_ens
2/7 Test #2: test_create_ens ..................   Passed   12.08 sec
    Start 3: test_letkfoi_snowda
3/7 Test #3: test_letkfoi_snowda ..............   Passed   53.21 sec
    Start 4: test_apply_jediincr
4/7 Test #4: test_apply_jediincr ..............   Passed    4.27 sec
    Start 5: test_tile2vector
5/7 Test #5: test_tile2vector .................   Passed   12.40 sec
    Start 6: test_land_driver
6/7 Test #6: test_land_driver .................   Passed    9.37 sec
    Start 7: test_ufs_datm_land
7/7 Test #7: test_ufs_datm_land ...............   Passed  387.18 sec

100% tests passed, 0 tests failed out of 7

Total Test time (real) = 487.07 sec