fix(deps): update module github.com/prometheus/client_golang to v1.15.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
github.com/prometheus/client_golang	require	patch	v1.15.0 -> v1.15.1

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Release Notes

prometheus/client_golang

v1.15.1

Compare Source

Changes

• [BUGFIX] Fixed promhttp.Instrument* handlers wrongly trying to attach exemplar to unsupported metrics (e.g. summary),
  causing panics #​1253

Full Changelog: prometheus/client_golang@v1.15.0...v1.15.1

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[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (75a21da) 100.00% compared to head (35d734b) 100.00%.

Additional details and impacted files

@@            Coverage Diff            @@
##            master       #44   +/-   ##
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  Coverage   100.00%   100.00%           
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  Files            3         3           
  Lines          245       245           
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  Hits           245       245           

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