Update dependency com.puppycrawl.tools:checkstyle to v10.20.2

Author: renovate[bot]

pom.xml

@@ -72,7 +72,7 @@
             <dependency>
               <groupId>com.puppycrawl.tools</groupId>
               <artifactId>checkstyle</artifactId>
-              <version>10.19.0</version>
+              <version>10.20.2</version>
             </dependency>
           </dependencies>
         </plugin>