Fix bug in ModulesJson

[ErikDanielsson]

Fixed bug in ModulesJson.check_up_to_date causing local modules to not be filtered out when looking for the remote of untracked files.

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

Merging #1690 (70f5175) into dev (d363205) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##              dev    #1690   +/-   ##
=======================================
  Coverage   67.88%   67.88%           
=======================================
  Files          56       56           
  Lines        6677     6677           
=======================================
  Hits         4533     4533           
  Misses       2144     2144           

Impacted Files	Coverage Δ
nf_core/modules/modules_json.py	63.26% <ø> (ø)

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[mirpedrol]

👍

[ErikDanielsson]

Thanks!