Update dependency org.bsc.maven:maven-processor-plugin to v5.1-jdk8

Author: xdev-renovate

demo/pom.xml

@@ -312,7 +312,7 @@
 				<plugin>
 					<groupId>org.bsc.maven</groupId>
 					<artifactId>maven-processor-plugin</artifactId>
-					<version>5.1</version>
+					<version>5.1-jdk8</version>
 				</plugin>
 
 				<!-- Spring -->