Fix tomcat metadata for --future-defaults

Author: vjovanov

metadata/org.apache.tomcat.embed/tomcat-embed-core/10.0.20/reflect-config.json

@@ -11,6 +11,20 @@
     ],
     "name": "org.apache.tomcat.util.modeler.modules.MbeansDescriptorsIntrospectionSource"
   },
+  {
+    "condition": {
+      "typeReachable": "org.apache.catalina.mbeans.MBeanUtils"
+    },
+    "methods": [
+      {
+        "name": "setWriteable",
+        "parameterTypes": [
+          "boolean"
+        ]
+      }
+    ],
+    "name": "org.apache.tomcat.util.modeler.AttributeInfo"
+  },
   {
     "condition": {
       "typeReachable": "org.apache.tomcat.util.modeler.Registry"