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

vendor/google.golang.org/grpc/peer/peer.go

@@ -32,6 +32,8 @@ import (
 type Peer struct {
 	// Addr is the peer address.
 	Addr net.Addr
+	// LocalAddr is the local address.
+	LocalAddr net.Addr
 	// AuthInfo is the authentication information of the transport.
 	// It is nil if there is no transport security being used.
 	AuthInfo credentials.AuthInfo