fix(towonel-agent): disable PROXY v2 on the echo service

The towonel-agent chart defaults to PROXY v2 for passthrough TLS
services, but the echo upstream speaks plain HTTP/1.1 directly, with
no proxy-protocol-aware frontend in front of it. Setting
proxy_protocol: none makes towonel forward the TLS-decrypted request
as plain HTTP, matching the upstream.

Author: eleboucher

kubernetes/apps/towonel-agent/helm-release.yml

@@ -19,6 +19,7 @@ spec:
       services:
         - hostname: echo.chkpwd.com
           origin: echo.networking.svc.cluster.local:8080
+          proxy_protocol: none
       inviteTokenSecret:
         name: towonel-agent-secret
         key: TOWONEL_INVITE_TOKEN