build(deps): bump github.com/prometheus/client_golang (#2503)

Bumps [github.com/prometheus/client_golang](https://github.com/prometheus/client_golang) from 1.20.0 to 1.20.3.
- [Release notes](https://github.com/prometheus/client_golang/releases)
- [Changelog](https://github.com/prometheus/client_golang/blob/v1.20.3/CHANGELOG.md)
- [Commits](https://github.com/prometheus/client_golang/compare/v1.20.0...v1.20.3)

---
updated-dependencies:
- dependency-name: github.com/prometheus/client_golang
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -4,7 +4,7 @@ go 1.19
 
 require (
 	github.com/Jeffail/gabs v1.4.0
-	github.com/prometheus/client_golang v1.20.0
+	github.com/prometheus/client_golang v1.20.3
 	k8s.io/apimachinery v0.29.3
 	k8s.io/client-go v0.29.3
 )