refactor: cleanup readReply() logic

[iuioiua]

• Reduces amount of functions that are not used in multiple places.
• Reduces the amount of additional redundant promise creation.
• Moves the functionality of AsyncQueue into RedisClient.
• Removes a little extra redundant work in various spots.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.75%. Comparing base (a415cb7) to head (1368a3d).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #181      +/-   ##
==========================================
- Coverage   99.06%   98.75%   -0.32%     
==========================================
  Files           1        1              
  Lines         213      160      -53     
  Branches       31       30       -1     
==========================================
- Hits          211      158      -53     
  Misses          2        2              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.