upgrade backend dependencies

backend/go.mod

@@ -7,10 +7,9 @@ require (
 	github.com/gin-gonic/gin v1.10.0
 	github.com/op/go-logging v0.0.0-20160315200505-970db520ece7
 	github.com/robfig/cron/v3 v3.0.1
-	github.com/sagernet/sing v0.6.0-beta.9
-	github.com/sagernet/sing-box v1.11.0-beta.20
-	github.com/sagernet/sing-dns v0.4.0-beta.1
-	github.com/shirou/gopsutil/v3 v3.24.5
+	github.com/sagernet/sing v0.6.0-beta.12
+	github.com/sagernet/sing-box v1.11.0-beta.24
+	github.com/sagernet/sing-dns v0.4.0-beta.2
 	golang.zx2c4.com/wireguard/wgctrl v0.0.0-20230429144221-925a1e7659e6
 	gorm.io/driver/sqlite v1.5.7
 	gorm.io/gorm v1.25.12
@@ -91,18 +90,17 @@ require (
 	github.com/sagernet/quic-go v0.48.2-beta.1 // indirect
 	github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691 // indirect
 	github.com/sagernet/sing-mux v0.3.0-alpha.1 // indirect
-	github.com/sagernet/sing-quic v0.4.0-beta.3 // indirect
+	github.com/sagernet/sing-quic v0.4.0-beta.4 // indirect
 	github.com/sagernet/sing-shadowsocks v0.2.7 // indirect
 	github.com/sagernet/sing-shadowsocks2 v0.2.0 // indirect
 	github.com/sagernet/sing-shadowtls v0.2.0-alpha.2 // indirect
-	github.com/sagernet/sing-tun v0.6.0-beta.7.0.20241229131914-aa9d9c62966f // indirect
+	github.com/sagernet/sing-tun v0.6.0-beta.8 // indirect
 	github.com/sagernet/sing-vmess v0.2.0-beta.2 // indirect
 	github.com/sagernet/smux v0.0.0-20231208180855-7041f6ea79e7 // indirect
 	github.com/sagernet/utls v1.6.7 // indirect
 	github.com/sagernet/wireguard-go v0.0.1-beta.5 // indirect
 	github.com/sagernet/ws v0.0.0-20231204124109-acfe8907c854 // indirect
 	github.com/shirou/gopsutil/v4 v4.24.12
-	github.com/shoenig/go-m1cpu v0.1.6 // indirect
 	github.com/tklauser/go-sysconf v0.3.14 // indirect
 	github.com/tklauser/numcpus v0.9.0 // indirect
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect