Add metadata for info.*

Closes gh-1993

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

@@ -11,6 +11,11 @@
     "sourceType": "org.springframework.boot.actuate.endpoint.EnvironmentEndpoint",
     "description": "The keys that should be sanitize. Keys can be simple strings that the property ends with or regex expressions."
   },
+  {
+    "name": "info",
+    "type": "java.util.Map<java.lang.String,java.lang.Object>",
+    "description": "Arbitrary properties to add to the info endpoint."
+  },
   {
     "name": "management.health.db.enabled",
     "type": "java.lang.Boolean",