Periodic windows release test CI failures

[anissa111]

Logging this so there's a record of how to unstick future tests

See

• https://github.com/NCAR/geocat-comp/actions/runs/15768382188/attempts/1
• https://github.com/NCAR/geocat-comp/actions/runs/15668918377

micromamba list
  C:\Users\runneradmin\micromamba-bin\micromamba.exe list -r C:\Users\runneradmin\micromamba -n import_test
  info     libmamba ****************** Backtrace Start ******************
  debug    libmamba Loading configuration
  trace    libmamba Compute configurable 'create_base'
  trace    libmamba Compute configurable 'no_env'
  trace    libmamba Compute configurable 'no_rc'
  trace    libmamba Compute configurable 'rc_files'
  trace    libmamba Compute configurable 'root_prefix'
  trace    libmamba Get RC files configuration from locations up to HomeDir
  trace    libmamba Configuration found at 'D:\a\_temp\setup-micromamba\.condarc'
  trace    libmamba Update configurable 'no_env'
  trace    libmamba Compute configurable 'envs_dirs'
  trace    libmamba Compute configurable 'file_specs'
  trace    libmamba Compute configurable 'spec_file_env_name'
  trace    libmamba Compute configurable 'env_name'
  trace    libmamba Compute configurable 'use_default_prefix_fallback'
  trace    libmamba Compute configurable 'use_root_prefix_fallback'
  trace    libmamba Compute configurable 'use_target_prefix_fallback'
  trace    libmamba Compute configurable 'target_prefix'
  trace    libmamba Get RC files configuration from locations up to TargetPrefix
  trace    libmamba Configuration found at 'D:\a\_temp\setup-micromamba\.condarc'
  trace    libmamba Update configurable 'no_env'
  trace    libmamba Compute configurable 'relocate_prefix'
  trace    libmamba Compute configurable 'target_prefix_checks'
  error    libmamba No prefix found at: C:\Users\runneradmin\micromamba\envs\import_test
  error    libmamba Environment must first be created with "micromamba create -n {env_name} ..."
  critical libmamba Aborting.
  info     libmamba ****************** Backtrace End ********************
Error: The process 'C:\Users\runneradmin\micromamba-bin\micromamba.exe' failed with exit code 1

---

I'm not sure why the windows tests are particularly brittle or why the failures are occurring, but since it appears to be a caching issue, we could probably alter the retry environment step to ignore the cached environment to make them less brittle.

---

To fix the failing tests, run

gh cache delete "release_test-Windows"

and then re-run them

[anissa111]

I'll leave this open for now, as the "fix" here doesn't actually address the root cause of the failing tests.