Point to correct Reachability repo

[lucas34]

Reachability now support SPM. Only on master branch for now.
Will update after the next release.

[lucas-bot]

	2 Warnings
⚠️	The Package.resolved or cartfile.resolved was updated, but not both. Did you forgot to run carthage update or swift package update?
⚠️	The Package.swift was updated, but there were no changes in either the podspec nor Cartfile. Did you forget updating podspec or Cartfile?

Generated by 🚫 Danger

[codecov]

Codecov Report

Merging #175 into master will decrease coverage by 0.26%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #175      +/-   ##
==========================================
- Coverage   96.73%   96.46%   -0.27%     
==========================================
  Files          25       25              
  Lines        1868     1868              
==========================================
- Hits         1807     1802       -5     
- Misses         61       66       +5

Impacted Files	Coverage Δ
Sources/SwiftQueue/Constraint+Network.swift	62.06% <0%> (-17.25%)	⬇️