chore(perf-issues): Dedupe the evidence from URL parameters in experiment

[leeandher]

Since we catch these on two dimensions now (e.g, path params change or query params change or both) we need to dedupe the evidence now. Some Examples:

example.com/user/1/data?region=1 
example.com/user/2/data?region=1  
example.com/user/3/data?region=1
> Path: [1, 2, 3]
> Old Query: [1, 1, 1]
> New Query: [1] 

example.com/user/1/data?region=1 
example.com/user/1/data?region=2  
example.com/user/1/data?region=3
> Old Path: [1, 1, 1]
> New Path: [1]
> Query: [1, 2, 3]

example.com/user/1/data?region=1 
example.com/user/2/data?region=2  
example.com/user/3/data?region=3
> Path: [1, 2, 3]
> Query: [1, 2, 3] 

[armenzg]

👍🏻

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #92222      +/-   ##
==========================================
+ Coverage   85.57%   87.93%   +2.36%     
==========================================
  Files       10172    10174       +2     
  Lines      583350   583391      +41     
  Branches    22593    22593              
==========================================
+ Hits       499175   512991   +13816     
+ Misses      83723    69948   -13775     
  Partials      452      452