chore: bump denoland/setup-deno from v1 to v2

[injust]

This bumps denoland/setup-deno from v1 to v2, but does not switch to Deno 2.

setup-deno@v1 will be deprecated soon.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 73.77%. Comparing base (5d0d083) to head (51c04e0).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #34   +/-   ##
=======================================
  Coverage   73.77%   73.77%           
=======================================
  Files           6        6           
  Lines         225      225           
  Branches       52       52           
=======================================
  Hits          166      166           
  Misses         57       57           
  Partials        2        2           

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[hasundue]

Thanks for notifying that. Deno 2.0 will be also supported soon hopefully.