Extra lint test with --release

[ewels]

• Run an extra job in the CI to do linting with --release to try to pick up any other nasty hidden errors like the one that sneaked into the recent releases.
• Tweak the traceback setup so that they are not so long and people can paste them into Slack 😉

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 #968 (2ecae0c) into dev (62e2529) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##              dev     #968   +/-   ##
=======================================
  Coverage   69.30%   69.30%           
=======================================
  Files          34       34           
  Lines        4225     4225           
=======================================
  Hits         2928     2928           
  Misses       1297     1297           

Impacted Files	Coverage Δ
nf_core/__main__.py	61.26% <100.00%> (ø)

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[KevinMenden]

Nice 👌

[ggabernet]

Looks good!