Update tag_bot to accept regexpr and prefix expressions for filtering

[sgibson91]

No description provided.

[codecov]

Codecov Report

Merging #105 (af5437d) into main (cfd6569) will increase coverage by 3.62%.
The diff coverage is 86.66%.

@@            Coverage Diff             @@
##             main     #105      +/-   ##
==========================================
+ Coverage   73.87%   77.50%   +3.62%     
==========================================
  Files           5        5              
  Lines         245      280      +35     
==========================================
+ Hits          181      217      +36     
+ Misses         64       63       -1     

Impacted Files	Coverage Δ
helm_bot/yaml_parser.py	100.00% <ø> (+5.00%)	⬆️
helm_bot/main.py	46.15% <75.00%> (+2.62%)	⬆️
helm_bot/pull_version_info.py	80.82% <89.18%> (+17.40%)	⬆️

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