fix: Use UTC as event invoice issued-at timezone

[iamareebjamal]

No description provided.

[codecov]

Codecov Report

Merging #7307 into development will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff              @@
##           development    #7307   +/-   ##
============================================
  Coverage        64.00%   64.00%           
============================================
  Files              259      259           
  Lines            13075    13075           
============================================
  Hits              8368     8368           
  Misses            4707     4707           

Impacted Files	Coverage Δ
app/api/helpers/scheduled_jobs.py	59.37% <ø> (ø)

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