Polish "Add support for Oracle UCP"

See gh-23403

buildSrc/src/main/java/org/springframework/boot/build/context/properties/DocumentConfigurationProperties.java

@@ -82,6 +82,8 @@ public class DocumentConfigurationProperties extends DefaultTask {
 				.withKeyPrefixes("spring.couchbase", "spring.elasticsearch", "spring.h2", "spring.influx",
 						"spring.mongodb", "spring.neo4j", "spring.redis", "spring.dao", "spring.data",
 						"spring.datasource", "spring.jooq", "spring.jdbc", "spring.jpa", "spring.r2dbc")
+				.addOverride("spring.datasource.oracleucp",
+						"Oracle UCP specific settings bound to an instance of Oracle UCP's PoolDataSource")
 				.addOverride("spring.datasource.dbcp2",
 						"Commons DBCP2 specific settings bound to an instance of DBCP2's BasicDataSource")
 				.addOverride("spring.datasource.tomcat",