Bump to v3.15.7

[CollinBeczak]

What's Changed

• Bump various dependencies related to react-leaflet bump from v2.7.0 to v4.2.1 by @CollinBeczak in Bump react leaflet to v4 and bump various other related dependencies #2367
• Improve resizability of the work on multiple tasks together widget map by @CollinBeczak in Bump react leaflet to v4 and bump various other related dependencies #2367
• Bump ws from 7.5.9 to 7.5.10 by @dependabot in Bump ws from 7.5.9 to 7.5.10 #2366
• Make marker popups persist on rerender by @CollinBeczak in Bump react leaflet to v4 and bump various other related dependencies #2367
• Fixes for some of the warnings and errors in jest tests by @CollinBeczak in Bump react leaflet to v4 and bump various other related dependencies #2367
• Remove overlapping tasks marker to allow users to un-cluster overlapped tasks, spider them, and open their individual popups by @CollinBeczak in Bump react leaflet to v4 and bump various other related dependencies #2367
• add links to task ids in work on multiple tasks widget by @CollinBeczak in add links to task ids in work on multiple tasks widget #2372

Full Changelog: v3.15.6...v3.15.7
Released with maproulette-backend_v4.5.4

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 23.48%. Comparing base (be994cf) to head (12e74c0).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2374   +/-   ##
=======================================
  Coverage   23.48%   23.48%           
=======================================
  Files         649      649           
  Lines       22503    22503           
  Branches     6941     6927   -14     
=======================================
  Hits         5284     5284           
  Misses      14406    14406           
  Partials     2813     2813           

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