fix: Enabled @typescript-eslint/return-await rule and fixed offending code

[bmingles]

Enabled @typescript-eslint/return-await eslint rule and fixed offending code.

fixes #2154

BREAKING CHANGE: Fix any try / catch blocks that return non-awaited Promises

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 46.68%. Comparing base (958b011) to head (85268c8).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2157      +/-   ##
==========================================
- Coverage   46.68%   46.68%   -0.01%     
==========================================
  Files         691      691              
  Lines       38587    38587              
  Branches     9622     9622              
==========================================
- Hits        18016    18014       -2     
- Misses      20560    20562       +2     
  Partials       11       11              

Flag	Coverage Δ
unit	46.68% <100.00%> (-0.01%)	⬇️

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