Fix NTP service

go.mod

@@ -26,7 +26,7 @@ require (
 	github.com/sagernet/gvisor v0.0.0-20241123041152-536d05261cff
 	github.com/sagernet/quic-go v0.49.0-beta.1
 	github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691
-	github.com/sagernet/sing v0.6.6-0.20250406121928-926a5a1e8bb7
+	github.com/sagernet/sing v0.6.6
 	github.com/sagernet/sing-dns v0.4.1
 	github.com/sagernet/sing-mux v0.3.1
 	github.com/sagernet/sing-quic v0.4.1

go.sum

@@ -121,6 +121,8 @@ github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691/go.mod h1:B8lp4Wk
 github.com/sagernet/sing v0.2.18/go.mod h1:OL6k2F0vHmEzXz2KW19qQzu172FDgSbUSODylighuVo=
 github.com/sagernet/sing v0.6.6-0.20250406121928-926a5a1e8bb7 h1:ZJauxLmH12Gzv3nucfjsSBQw9UA8t7Sxu8pYHBSP2TU=
 github.com/sagernet/sing v0.6.6-0.20250406121928-926a5a1e8bb7/go.mod h1:ARkL0gM13/Iv5VCZmci/NuoOlePoIsW0m7BWfln/Hak=
+github.com/sagernet/sing v0.6.6 h1:3JkvJ0vqDj/jJcx0a+ve/6lMOrSzZm30I3wrIuZtmRE=
+github.com/sagernet/sing v0.6.6/go.mod h1:ARkL0gM13/Iv5VCZmci/NuoOlePoIsW0m7BWfln/Hak=
 github.com/sagernet/sing-dns v0.4.1 h1:nozS7iqpxZ7aV73oHbkD/8haOvf3XXDCgT//8NdYirk=
 github.com/sagernet/sing-dns v0.4.1/go.mod h1:dweQs54ng2YGzoJfz+F9dGuDNdP5pJ3PLeggnK5VWc8=
 github.com/sagernet/sing-mux v0.3.1 h1:kvCc8HyGAskDHDQ0yQvoTi/7J4cZPB/VJMsAM3MmdQI=