Separate R2DBC and JDBC database initialization

Co-authored-by: Phillip Webb <phil.webb@broadcom.com>

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

@@ -327,6 +327,16 @@
         "messages"
       ]
     },
+    {
+      "name": "spring.sql.init.enabled",
+      "type": "java.lang.Boolean",
+      "description": "Whether basic script-based initialization of an SQL database is enabled.",
+      "defaultValue": true,
+      "deprecation": {
+        "replacement": "spring.sql.init.mode",
+        "level": "warning"
+      }
+    },
     {
       "name": "spring.threads.virtual.enabled",
       "type": "java.lang.Boolean",