Add missing default values in configuration properties metadata

Closes gh-23991

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

@@ -204,6 +204,10 @@
       "name": "server.servlet.session.tracking-modes",
       "description": "Session tracking modes."
     },
+    {
+      "name": "server.shutdown",
+      "defaultValue": "immediate"
+    },
     {
       "name": "server.ssl.ciphers",
       "description": "Supported SSL ciphers."
@@ -266,9 +270,6 @@
       "name": "server.ssl.trust-store-type",
       "description": "Type of the trust store."
     },
-    { "name": "server.shutdown",
-      "defaultValue:": "immediate"
-    },
     {
       "name": "server.tomcat.max-http-post-size",
       "type": "org.springframework.util.unit.DataSize",
@@ -1250,6 +1251,10 @@
         "level": "error"
       }
     },
+    {
+      "name": "spring.kafka.consumer.isolation-level",
+      "defaultValue": "read-uncommitted"
+    },
     {
       "name": "spring.kafka.consumer.ssl.keystore-location",
       "type": "org.springframework.core.io.Resource",