pom.xml: updates maven checkstyle plugin

Author: janvonde

goobi-viewer-connector/pom.xml

@@ -410,7 +410,7 @@
 					<dependency>
 						<groupId>com.puppycrawl.tools</groupId>
 						<artifactId>checkstyle</artifactId>
-						<version>12.0.1</version>
+						<version>12.1.1</version>
 					</dependency>
 				</dependencies>
 				<executions>