Updated URL for pipeline lint test docs

[ewels]

When you run pipeline linting you can ctrl+click the test name and it takes you to the website. This updates to the newer URL format and also pins the version of tools that you're currently running.

Fixes #1348

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

[sateeshperi]

lgtm

[codecov]

Codecov Report

Merging #1451 (22c5622) into dev (70cf924) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##              dev    #1451      +/-   ##
==========================================
+ Coverage   64.80%   64.81%   +0.01%     
==========================================
  Files          51       51              
  Lines        6000     6002       +2     
==========================================
+ Hits         3888     3890       +2     
  Misses       2112     2112              

Impacted Files	Coverage Δ
nf_core/lint/__init__.py	70.11% <100.00%> (+0.23%)	⬆️

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