Fix linting fail on nfcore_external_java_deps if nf_schema is used

[itrujnara]

Fixed a bug where linting failed in pipelines using nf_schema instead of nf_validation.
Conditional file linting now accepts a list of parameters instead of a single one. The parameters are or-gated, i.e. a single one is sufficient to mark the parameter as present (and thus expect the file to not exist).
Please verify test coverage, as I am not familiar with the coding practices in tools.

PR checklist

• This comment contains a description of changes (with reason)
• CHANGELOG.md is updated
• If you've fixed a bug or added code that should be tested, add tests!
• Documentation in docs is updated

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.19%. Comparing base (1ae28bc) to head (c3e2844).

Additional details and impacted files

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[mashehu]

very nice, thanks!

[mashehu]

@nf-core-bot changelog