Update relay proxy helm README (#4194)

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cmd/relayproxy/helm-charts/relay-proxy/README.md

@@ -1,6 +1,6 @@
 # relay-proxy
 
-![Version: 1.46.1](https://img.shields.io/badge/Version-1.46.1-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: v1.46.1](https://img.shields.io/badge/AppVersion-v1.46.1-informational?style=flat-square)
+![Version: 1.47.1](https://img.shields.io/badge/Version-1.47.1-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: v1.47.1](https://img.shields.io/badge/AppVersion-v1.47.1-informational?style=flat-square)
 
 A Helm chart to deploy go-feature-flag-relay proxy into Kubernetes