Update dependency org.openapitools:jackson-databind-nullable to v0.2.8

Author: xdev-renovate

sessionize-java-client/pom.xml

@@ -96,7 +96,7 @@
 		<dependency>
 			<groupId>org.openapitools</groupId>
 			<artifactId>jackson-databind-nullable</artifactId>
-			<version>0.2.7</version>
+			<version>0.2.8</version>
 		</dependency>
 
 		<dependency>