added csv-file path to onComplete

[ViktorHy]

Description

Added another value to the onComplete function for CCCP to use

Type of change

• [ ] Major change
• [ ] Minor change
• [x] Patch
• [ ] Documentation

Checklist:

• [x] My code follows the style guidelines for NF pipelines at CMD
• [x] I have performed a self-review of my code
• [ ] I have commented my code, particularly in hard-to-understand areas
• [x] My changes generate no new warnings (Keep an eye on .nextflow.log !)
• [x] I have updated the CHANGELOG
• [ ] The latest commit in the master branch is tagged with the correct version number

Patch

• [x] Stub run completes without errors or new warnings

Documentation

• [ ] At least one other person has reviewed my changes

Expected outcome

The log-file should include the path to the csv-file

Post-merge

• [ ] The master branch has been tagged with the new version number.