Update geps/gep-1856.md

Set Status to "Provisional". Remove other statuses.

Co-authored-by: Shane Utt <[email protected]>

Author: quangnguyen101

geps/gep-1856.md

@@ -1,7 +1,7 @@
 # GEP 1856: Egress Route
 Issue: [#1856](https://github.com/kubernetes-sigs/gateway-api/issues/1856)
 
-Status: Provisional|Implementable|Experimental|Standard|Deferred|Rejected|Withdrawn|Replaced
+Status: Provisional
 
 ## TLDR
 Egress traffic is any traffic that originates inside a Kubernetes cluster that is bound for a resource outside of the cluster. Egress Traffic in Kubernetes is a common use case for Service Providers to provision outbound traffic that requires a Gateway resource to provide Source Network Address Translation (SNAT) capabilities.