fix: ensure gitCommitterEmail uses correct action input

[Xunnamius]

Closes #64

[codecov]

Codecov Report

Merging #67 (2b4433b) into master (1802bb7) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #67   +/-   ##
=======================================
  Coverage   80.17%   80.17%           
=======================================
  Files           3        3           
  Lines         116      116           
  Branches       28       28           
=======================================
  Hits           93       93           
  Misses         12       12           
  Partials       11       11           

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[crazy-max]

LGTM thanks!