chore(helm): enable compression for nginx

Signed-off-by: rjshrjndrn <rjshrjndrn@gmail.com>

scripts/helmcharts/vars.yaml

@@ -59,6 +59,7 @@ ingress-nginx: &ingress-nginx
     extraArgs:
       default-ssl-certificate: "app/openreplay-ssl"
     config:
+      use-gzip: true
       enable-real-ip: true
       # Enable LB forwarded protocol
       # Ref: https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/configmap/#use-forwarded-headers