chore: upgrade coredns version (#550)

vendor/github.com/expr-lang/expr/internal/deref/deref.go

@@ -0,0 +1,47 @@
+package deref
+
+import (
+	"fmt"
+	"reflect"
+)
+
+func Interface(p any) any {
+	if p == nil {
+		return nil
+	}
+
+	v := reflect.ValueOf(p)
+
+	for v.Kind() == reflect.Ptr || v.Kind() == reflect.Interface {
+		if v.IsNil() {
+			return nil
+		}
+		v = v.Elem()
+	}
+
+	if v.IsValid() {
+		return v.Interface()
+	}
+
+	panic(fmt.Sprintf("cannot dereference %v", p))
+}
+
+func Type(t reflect.Type) reflect.Type {
+	if t == nil {
+		return nil
+	}
+	for t.Kind() == reflect.Ptr {
+		t = t.Elem()
+	}
+	return t
+}
+
+func Value(v reflect.Value) reflect.Value {
+	for v.Kind() == reflect.Ptr || v.Kind() == reflect.Interface {
+		if v.IsNil() {
+			return v
+		}
+		v = v.Elem()
+	}
+	return v
+}