TUN-9467: bump coredns to solve CVE

* TUN-9467: bump coredns to solve CVE

vendor/google.golang.org/grpc/internal/balancer/gracefulswitch/config.go

@@ -33,6 +33,8 @@ type lbConfig struct {
 	childConfig  serviceconfig.LoadBalancingConfig
 }
 
+// ChildName returns the name of the child balancer of the gracefulswitch
+// Balancer.
 func ChildName(l serviceconfig.LoadBalancingConfig) string {
 	return l.(*lbConfig).childBuilder.Name()
 }
@@ -75,7 +77,6 @@ func ParseConfig(cfg json.RawMessage) (serviceconfig.LoadBalancingConfig, error)
 		if err != nil {
 			return nil, fmt.Errorf("error parsing config for policy %q: %v", name, err)
 		}
-
 		return &lbConfig{childBuilder: builder, childConfig: cfg}, nil
 	}
 

vendor/google.golang.org/grpc/internal/balancer/gracefulswitch/gracefulswitch.go

@@ -109,8 +109,9 @@ func (gsb *Balancer) switchTo(builder balancer.Builder) (*balancerWrapper, error
 		return nil, errBalancerClosed
 	}
 	bw := &balancerWrapper{
-		builder: builder,
-		gsb:     gsb,
+		ClientConn: gsb.cc,
+		builder:    builder,
+		gsb:        gsb,
 		lastState: balancer.State{
 			ConnectivityState: connectivity.Connecting,
 			Picker:            base.NewErrPicker(balancer.ErrNoSubConnAvailable),
@@ -169,7 +170,6 @@ func (gsb *Balancer) latestBalancer() *balancerWrapper {
 func (gsb *Balancer) UpdateClientConnState(state balancer.ClientConnState) error {
 	// The resolver data is only relevant to the most recent LB Policy.
 	balToUpdate := gsb.latestBalancer()
-
 	gsbCfg, ok := state.BalancerConfig.(*lbConfig)
 	if ok {
 		// Switch to the child in the config unless it is already active.
@@ -294,6 +294,7 @@ func (gsb *Balancer) Close() {
 // State updates from the wrapped balancer can result in invocation of the
 // graceful switch logic.
 type balancerWrapper struct {
+	balancer.ClientConn
 	balancer.Balancer
 	gsb     *Balancer
 	builder balancer.Builder
@@ -414,7 +415,3 @@ func (bw *balancerWrapper) UpdateAddresses(sc balancer.SubConn, addrs []resolver
 	bw.gsb.mu.Unlock()
 	bw.gsb.cc.UpdateAddresses(sc, addrs)
 }
-
-func (bw *balancerWrapper) Target() string {
-	return bw.gsb.cc.Target()
-}