Add missing javadoc dependency

Author: snicoll

spring-boot-docs/pom.xml

@@ -268,6 +268,11 @@
 			<artifactId>javax.jms-api</artifactId>
 			<optional>true</optional>
 		</dependency>
+		<dependency>
+			<groupId>javax.json.bind</groupId>
+			<artifactId>javax.json.bind-api</artifactId>
+			<optional>true</optional>
+		</dependency>
 		<dependency>
 			<groupId>javax.mail</groupId>
 			<artifactId>javax.mail-api</artifactId>