Upgrade to Johnzon 1.2.8

wilkinsona · wilkinsona · commit ee689f516f33 · 2020-07-21T13:37:21.000+01:00
Closes gh-22467
diff --git a/spring-boot-project/spring-boot-dependencies/build.gradle b/spring-boot-project/spring-boot-dependencies/build.gradle
@@ -863,7 +863,7 @@ bom {
 			]
 		}
 	}
-	library("Johnzon", "1.2.7") {
+	library("Johnzon", "1.2.8") {
 		group("org.apache.johnzon") {
 			modules = [
 				"johnzon-core",
