fix: change the public key used for environment secrets

[chatii]

Fixes #32

[codecov-commenter]

Codecov Report

Merging #33 (8213314) into main (23f0529) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main      #33   +/-   ##
=======================================
  Coverage   98.22%   98.22%           
=======================================
  Files          19       19           
  Lines         338      338           
  Branches       33       33           
=======================================
  Hits          332      332           
  Misses          6        6           

Impacted Files	Coverage Δ
...ecrets/action-environment-secret-handler.lambda.ts	100.00% <100.00%> (ø)

[WtfJoke]

Hey @chatii

Thank you for reporting the issue and fixing it right away, appreciate the effort :)