reduce resource_class for circle

[hborawski]

What Changed

Reduced resource class to small instead of the default large

Why

No need for a large, builds are short anyway

Todo:

• Add tests
• Add docs
• Add release notes

[codecov-commenter]

Codecov Report

Merging #11 (b4b9bb1) into main (4faa2cd) will increase coverage by 0.18%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main      #11      +/-   ##
==========================================
+ Coverage   98.67%   98.85%   +0.18%     
==========================================
  Files          12       12              
  Lines         151      175      +24     
==========================================
+ Hits          149      173      +24     
  Misses          2        2              

Impacted Files	Coverage Δ
Sources/SwiftHooks/BaseHook.swift	100.00% <100.00%> (ø)

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[hborawski]

OSS gets 400k credits on circle, so this isnt needed actually