Merge pull request #34122 from izeye

* gh-34122:
  Add metadata for default for spring.jmx.registration-policy

Closes gh-34122

spring-boot-project/spring-boot-autoconfigure/src/main/resources/META-INF/additional-spring-configuration-metadata.json

@@ -3075,6 +3075,10 @@
         }
       ]
     },
+    {
+      "name": "spring.jmx.registration-policy",
+      "defaultValue": "fail-on-existing"
+    },
     {
       "name": "spring.jmx.server",
       "providers": [