refactor: Build with latest SwiftLint

[cbaker6]

New Pull Request Checklist

• I am not disclosing a vulnerability.
• I am creating this PR in reference to an issue.

Issue Description

• A new version of SwiftLint is released which causes some linting errors
• Cocoapods doesn't default to Swift 5.8 on latest Xcode

Approach

• Ignore new build rule for SwiftLint
• Add 5.8 to cocoa pods

TODOs before merging

• Add entry to changelog
• Add changes to documentation (guides, repository pages, in-code descriptions)

[codecov]

Codecov Report

Merging #92 (abcecba) into main (088e420) will decrease coverage by 0.11%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main      #92      +/-   ##
==========================================
- Coverage   91.49%   91.38%   -0.11%     
==========================================
  Files         172      172              
  Lines       15261    15261              
==========================================
- Hits        13963    13947      -16     
- Misses       1298     1314      +16     

Impacted Files	Coverage Δ
...urces/ParseSwift/API/ParseURLSessionDelegate.swift	100.00% <ø> (ø)

... and 4 files with indirect coverage changes

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.