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

Bumps [github.com/prometheus/client_golang](https://github.com/prometheus/client_golang) from 1.20.2 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](prometheus/client_golang@v1.20.2...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>

go.mod

@@ -5,7 +5,7 @@ go 1.21
 require (
 	github.com/goexl/log v0.0.7
 	github.com/goexl/valuer v0.0.4
-	github.com/prometheus/client_golang v1.20.2
+	github.com/prometheus/client_golang v1.20.3
 )
 
 require (