Update contact persons

CODE_OF_CONDUCT.md

@@ -38,7 +38,7 @@ Instances of abusive, harassing, or otherwise unacceptable behavior may be repor
 
 [FloorD](https://github.com/floord) (she/her), floor@phusion.nl, English / Dutch / German
 
-[OnixGH](https://github.com/OnixGH) (he/his), daniel@phusion.nl, English / Dutch
+[Scarhand](https://github.com/scarhand) (he/his), niels@phusion.nl, English / Dutch
 
 The project team will review and investigate all complaints, and will respond in a way that it deems appropriate to the circumstances. The project team is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately.