influx-metrics.js

* Build(deps): bump prom-client from 11.5.3 to 13.0.0

Bumps [prom-client](https://github.com/siimon/prom-client) from 11.5.3 to 13.0.0.
- [Release notes](https://github.com/siimon/prom-client/releases)
- [Changelog](https://github.com/siimon/prom-client/blob/master/CHANGELOG.md)
- [Commits](https://github.com/siimon/prom-client/compare/v11.5.3...v13.0.0

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

* deps: apply updates for prom version bump

* register.getMetricsAsJSON is async now

* PrometheusMetrics#metrics is async

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>
Co-authored-by: Caleb Cartwright <caleb.cartwright@outlook.com>
Co-authored-by: Marcin Mielnicki <marcin.mielnicki@gmail.com>
Co-authored-by: repo-ranger[bot] <39074581+repo-ranger[bot]@users.noreply.github.com>