Adding a regexify test case for metacharacters inside a character set

[eduhoribe]

Closes #1158

[snuyanzin]

please do not use import *

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.39%. Comparing base (b37c566) to head (cec79b9).
Report is 57 commits behind head on main.

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Additional details and impacted files

@@             Coverage Diff              @@
##               main    #1159      +/-   ##
============================================
+ Coverage     92.35%   92.39%   +0.04%     
- Complexity     2821     2837      +16     
============================================
  Files           292      293       +1     
  Lines          5609     5614       +5     
  Branches        599      598       -1     
============================================
+ Hits           5180     5187       +7     
  Misses          275      275              
+ Partials        154      152       -2     

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[bodiam]

Thanks for adding this PR. Happy to accept it if you could please revert the * import.

[eduhoribe]

Import changes reverted, thanks for the review!

[snuyanzin]

Thanks for addressing feedback