fix: enable gotrue template reloading (#4766)

Author: singh-inder

internal/start/start.go

@@ -580,6 +580,7 @@ EOF
 			fmt.Sprintf("GOTRUE_MAILER_AUTOCONFIRM=%v", !utils.Config.Auth.Email.EnableConfirmations),
 			fmt.Sprintf("GOTRUE_MAILER_OTP_LENGTH=%v", utils.Config.Auth.Email.OtpLength),
 			fmt.Sprintf("GOTRUE_MAILER_OTP_EXP=%v", utils.Config.Auth.Email.OtpExpiry),
+			"GOTRUE_MAILER_TEMPLATE_RELOADING_ENABLED=true",
 
 			fmt.Sprintf("GOTRUE_EXTERNAL_ANONYMOUS_USERS_ENABLED=%v", utils.Config.Auth.EnableAnonymousSignIns),