[core] GOWS - force to use cgo dns

fix #1649

.env.example

@@ -32,6 +32,12 @@ WAHA_BASE_URL=http://localhost:3000
 # WHATSAPP_API_HOSTNAME=localhost
 
 
+# ===================
+# ====== GOWS =======
+# ===================
+# By default, GOWS uses cgo (libc) DNS resolver
+# You can ask to use golang one, but it's less reliable
+# GODEBUG=netdns=go
 
 # ===================
 # ===== LOGGING =====