Add Lukas Hering as contrib approver

Author: xrmx

README.md

@@ -126,6 +126,7 @@ For more information about the maintainer role, see the [community repository](h
 - [Héctor Hernández](https://github.com/hectorhdzg), Microsoft
 - [Jeremy Voss](https://github.com/jeremydvoss), Microsoft
 - [Liudmila Molkova](https://github.com/lmolkova), Grafana Labs
+- [Lukas Hering](https://github.com/herin049), Capital One
 - [Owais Lone](https://github.com/owais), Splunk
 - [Pablo Collins](https://github.com/pmcollins), Splunk
 - [Sanket Mehta](https://github.com/sanketmehta28), Cisco