feat: calculate percentiles using different library (montanaflynn/stats)

[scott-david-walker]

Pull request description

Checklist (choose whats happened)

• breaking change! (describe)
• tested locally
• tested on cluster
• added new dependencies
• updated the docs
• added a test

Breaking changes

Changes

• Use new library to calculate percentiles (montanaflynn/stats)
• Added unit tests

Fixes

• Percentile calculations seem to be off #2994

[vLia]

Looks good, always excited to see new tests added! 👍

[vsukhin]

@scott-david-walker check unit tests
--- FAIL: TestTestExecutionsMetrics/getting_percentiles_of_execution_duration (0.00s)
FAIL
FAIL

and run go fmt for your changes

[scott-david-walker]

Could someone give me advice on what's going on with the linting error?

Cannot open: File exists in this action
I've ran the gofmt commands so I'm at a bit of a loss

Apologies if this is a stupid question, bit of a noob at GoLang :-)

[vsukhin]

@scott-david-walker make sure your code is go formatted. in other case, it could be github caching issue

[codecov-commenter]

Codecov Report

Base: 18.75% // Head: 18.97% // Increases project coverage by +0.22% 🎉

Coverage data is based on head (451ba5e) compared to base (5704467).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3086      +/-   ##
==========================================
+ Coverage   18.75%   18.97%   +0.22%     
==========================================
  Files         206      206              
  Lines       15233    15239       +6     
==========================================
+ Hits         2857     2892      +35     
+ Misses      12174    12141      -33     
- Partials      202      206       +4     

Impacted Files	Coverage Δ
pkg/repository/common/metrics.go	88.63% <100.00%> (+88.63%)	⬆️
pkg/api/v1/client/common.go	82.14% <0.00%> (-7.15%)	⬇️
pkg/agent/events.go	51.85% <0.00%> (-2.47%)	⬇️
pkg/cloud/service_grpc.pb.go	45.97% <0.00%> (ø)

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[vsukhin]

@scott-david-walker ignore linting check, just solve merging issue. it should be enough for merging