chore(deps): update module github.com/prometheus/client_golang to v1.20.3

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
github.com/prometheus/client_golang	v1.20.2 -> v1.20.3

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Release Notes

prometheus/client_golang (github.com/prometheus/client_golang)

v1.20.3

Compare Source

• [BUGFIX] histograms: Fix possible data race when appending exemplars. #​1608

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.32%. Comparing base (775567b) to head (1da3c33).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1076   +/-   ##
=======================================
  Coverage   81.32%   81.32%           
=======================================
  Files          54       54           
  Lines        3871     3871           
=======================================
  Hits         3148     3148           
  Misses        579      579           
  Partials      144      144           

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