project-maintainers.csv: cert-manager has a new maintainer

The vote took place in cert-manager/community#67.

Signed-off-by: Maël Valais <mael@vls.dev>

Author: maelvls

project-maintainers.csv

@@ -974,6 +974,7 @@ Graduated,cert-manager,James Munnelly,Apple,munnerz,https://github.com/cert-mana
 ,,Tim Ramlot,Venafi,inteon,
 ,,Adam Talbot,Epic Games,ThatsMrTalbot,
 ,,Erik Godding Boye,Zenior,erikgb,
+,,Hemant Joshi,Walmart,hjoshi123,
 Incubating,OpenKruise,Fei Guo,Alibaba,Fei-Guo,https://github.com/openkruise/kruise/blob/master/MAINTAINERS.md
 ,,Siyu Wang,Alibaba,FillZpp,
 ,,Zhen Zhang,Alibaba,furykerry,
@@ -2240,4 +2241,3 @@ Sandbox,KAI Scheduler,Roman Baron,NVIDIA,romanbaron,https://github.com/NVIDIA/KA
 ,,Sior Meir,NVIDIA,siormeir,
 ,,Guy Shaibi,NVIDIA,gshaibi,
 
-