Further preparation for .PATCH

[cbaker6]

Adds support for batch PATCH. Currently not used, but will make it easier to leverage once available.

[codecov]

Codecov Report

Merging #221 (ea754ad) into main (f6b2230) will not change coverage.
The diff coverage is 50.00%.

@@           Coverage Diff           @@
##             main     #221   +/-   ##
=======================================
  Coverage   83.57%   83.57%           
=======================================
  Files          76       76           
  Lines        7265     7265           
=======================================
  Hits         6072     6072           
  Misses       1193     1193           

Impacted Files	Coverage Δ
Sources/ParseSwift/API/Responses.swift	90.47% <50.00%> (ø)

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