Add reflection config for JMX runtime (#10753)

Motivation:

`DefaultChannelId` uses reflection to access the JMX runtime. This needs some extra config for GraalVM.

Modification:

Add config for GraalVM

Result:

Works when using GraalVM native image

transport/src/main/resources/META-INF/native-image/io.netty/transport/reflection-config.json

@@ -11,5 +11,23 @@
         { "name": "selectedKeys",  "allowUnsafeAccess" : true},
         { "name": "publicSelectedKeys",  "allowUnsafeAccess" : true}
       ]
+    },
+    {
+        "name": "java.lang.management.ManagementFactory",
+        "methods": [
+            {
+                "name": "getRuntimeMXBean",
+                "parameterTypes": []
+            }
+        ]
+    },
+    {
+        "name": "java.lang.management.RuntimeMXBean",
+        "methods": [
+            {
+                "name": "getName",
+                "parameterTypes": []
+            }
+        ]
     }
 ]