bug-fix: out of order args in count_state_ens_copies function

[mjs2369]

Description:

The function count_state_ens_copies had inconsistent ordering of the arguments in the function's definition and calls. This PR corrects this problem.

Fixes issue

fixes #613

Types of changes

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Documentation update

Documentation changes needed?

• [ ] My change requires a change to the documentation.
  • [ ] I have updated the documentation accordingly.

Tests

Please describe any tests you ran to verify your changes.

Tested to be bitwise identical with filter runs using the old ordering of the arguments (with both cam-fv and wrf)

Checklist for merging

• [ ] Updated changelog entry
• [ ] Documentation updated
• [ ] Update conf.py

Checklist for release

• [ ] Merge into main
• [ ] Create release from the main branch with appropriate tag
• [ ] Delete feature-branch

Testing Datasets

• [ ] Dataset needed for testing available upon request
• [ ] Dataset download instructions included
• [x] No dataset needed