Fix type mismatch with nextflow latest

[Grifs]

Describe your changes

Fix an issue with current nextflow-latest (24.01.0-edge) where our supporting library passes a GString instead of a String and results in a type mismatch

Related issue(s)

Closes #xxxx

Type of Change

• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] New functionality (non-breaking change which adds functionality)
• [ ] Major change (non-breaking change which modifies existing functionality)
• [ ] Minor change (non-breaking change which does not modify existing functionality)
• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] This change requires a documentation update

Checklist

Requirements:

• [x] I have read the CONTRIBUTING doc.
• [x] I have performed a self-review of my code by checking the "Changed Files" tab.
• [x] My code follows the code style of this project.

Tests:

• [ ] I have added tests that prove my fix is effective or that my feature works.
• [x] New and existing unit tests pass locally with my changes.

Documentation:

• [x] Proposed changes are described in the CHANGELOG.md.
• [ ] I have updated the documentation accordingly.

Test Environment

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (6e3f36d) 88.72% compared to head (b9abe63) 88.72%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop_0_8 #640 +/- ## ============================================ Coverage 88.72% 88.72% ============================================ Files 120 120 Lines 3629 3629 Branches 529 529 ============================================ Hits 3220 3220 Misses 409 409 ```

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