### Proposed changes

Describe the use case and detail of the change. If this PR addresses an issue on GitHub, make sure to include a link to
that issue here in this description (not in the title of the PR).

### Checklist

Before creating a PR, run through this checklist and mark each as complete.

- [ ] I have read the [CONTRIBUTING](https://github.com/nginx/nginx-prometheus-exporter/blob/main/CONTRIBUTING.md) guide
- [ ] I have proven my fix is effective or that my feature works
- [ ] I have checked that all unit tests pass after adding my changes
- [ ] I have ensured the README is up to date
- [ ] I have rebased my branch onto main
- [ ] I will ensure my PR is targeting the main branch and pulling from my branch on my own fork
