feat: Support must_include and must_exclude regex as an array

[bbugh]

Hi! 👋 Another PR. This solves our use case raised in #573 and allows must_include to be either a string or an `array.

I imagine this would be used in other places, but I'm not sure where.

[shine2lay]

Looks good, just for symmetry sake, would you mind doing the same for must_exclude as well? I think you also need to update the docs and changelog

[codecov]

Codecov Report

Merging #575 (e4697ae) into master (01fd21a) will increase coverage by 0.01%.
The diff coverage is 88.23%.

@@            Coverage Diff             @@
##           master     #575      +/-   ##
==========================================
+ Coverage   92.73%   92.75%   +0.01%     
==========================================
  Files         104      104              
  Lines        2341     2345       +4     
  Branches      413      413              
==========================================
+ Hits         2171     2175       +4     
  Misses        152      152              
  Partials       18       18              

Impacted Files	Coverage Δ
lib/validators/baseRef.js	100.00% <ø> (ø)
lib/validators/changeset.js	100.00% <ø> (ø)
lib/validators/contents.js	100.00% <ø> (ø)
lib/validators/description.js	100.00% <ø> (ø)
lib/validators/headRef.js	100.00% <ø> (ø)
lib/validators/label.js	100.00% <ø> (ø)
lib/validators/milestone.js	100.00% <ø> (ø)
lib/validators/title.js	100.00% <ø> (ø)
...lidators/options_processor/options/must_exclude.js	92.30% <88.23%> (+0.64%)	⬆️
...lidators/options_processor/options/must_include.js	92.30% <88.23%> (+0.64%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 01fd21a...e4697ae. Read the comment docs.

[bbugh]

Alright, I tested locally and it's working great. I extended it to include must_exclude, added some more tests, and updated the other validators that use must_include and must_exclude to support the array format. Also added the changelog. Let me know if there's anything else you want me to address!

[bbugh]

Oh, also updated the docs for the MustInclude and MustExclude pages, though I'm not sure if I got everything.

[github-actions]

🎉 This PR is included in version 2.2.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀