Upgrade to Johnzon Jsonb 1.2.9

Closes gh-24777

Author: snicoll

spring-boot-project/spring-boot-dependencies/pom.xml

@@ -134,7 +134,7 @@
 		<joda-time.version>2.10.9</joda-time.version>
 		<jolokia.version>1.6.2</jolokia.version>
 		<!-- Deprecated in favor of "johnzon.version" -->
-		<johnzon-jsonb.version>1.2.8</johnzon-jsonb.version>
+		<johnzon-jsonb.version>1.2.9</johnzon-jsonb.version>
 		<johnzon.version>${johnzon-jsonb.version}</johnzon.version>
 		<jooq.version>3.12.4</jooq.version>
 		<jsonassert.version>1.5.0</jsonassert.version>