TUN-8052: Update go to 1.21.5

Also update golang.org/x/net and google.golang.org/grpc to fix vulnerabilities,
although cloudflared is using them in a way that is not exposed to those risks

supervisor/supervisor.go

@@ -2,7 +2,6 @@ package supervisor
 
 import (
 	"context"
-	"crypto/tls"
 	"errors"
 	"net"
 	"strings"
@@ -11,8 +10,6 @@ import (
 	"github.com/quic-go/quic-go"
 	"github.com/rs/zerolog"
 
-	qtls120 "github.com/quic-go/qtls-go1-20"
-
 	"github.com/cloudflare/cloudflared/connection"
 	"github.com/cloudflare/cloudflared/edgediscovery"
 	"github.com/cloudflare/cloudflared/orchestration"
@@ -81,8 +78,6 @@ func NewSupervisor(config *TunnelConfig, orchestrator *orchestration.Orchestrato
 
 	reconnectCredentialManager := newReconnectCredentialManager(connection.MetricsNamespace, connection.TunnelSubsystem, config.HAConnections)
 
-	registerTLSEventLogger(config.Log)
-
 	tracker := tunnelstate.NewConnTracker(config.Log)
 	log := NewConnAwareLogger(config.Log, tracker, config.Observer)
 
@@ -341,26 +336,3 @@ func (s *Supervisor) waitForNextTunnel(index int) bool {
 func (s *Supervisor) unusedIPs() bool {
 	return s.edgeIPs.AvailableAddrs() > s.config.HAConnections
 }
-
-func registerTLSEventLogger(logger *zerolog.Logger) {
-	qtls120.SetCFEventHandler(func(ev qtls120.CFEvent) {
-		logger.Debug().Bool("handshake", ev.IsHandshake()).Str("handshake_duration", ev.Duration().String()).Str("curve", tlsCurveName(ev.KEX())).Msg("QUIC TLS event")
-	})
-}
-
-func tlsCurveName(curve tls.CurveID) string {
-	switch curve {
-	case tls.CurveP256:
-		return "p256"
-	case tls.CurveP384:
-		return "p384"
-	case tls.CurveP521:
-		return "p521"
-	case tls.X25519:
-		return "X25519"
-	case PQKex:
-		return PQKexName
-	default:
-		return "unknown"
-	}
-}