deps: update dependency com.puppycrawl.tools:checkstyle to v8.42 (#234)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.puppycrawl.tools:checkstyle](https://checkstyle.org/) ([source](https://togithub.com/checkstyle/checkstyle)) | `8.40` -> `8.42` | [![age](https://badges.renovateapi.com/packages/maven/com.puppycrawl.tools:checkstyle/8.42/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.puppycrawl.tools:checkstyle/8.42/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.puppycrawl.tools:checkstyle/8.42/compatibility-slim/8.40)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.puppycrawl.tools:checkstyle/8.42/confidence-slim/8.40)](https://docs.renovatebot.com/merge-confidence/) |

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pom.xml

@@ -612,7 +612,7 @@
               <dependency>
                 <groupId>com.puppycrawl.tools</groupId>
                 <artifactId>checkstyle</artifactId>
-                <version>8.40</version>
+                <version>8.42</version>
               </dependency>
             </dependencies>
             <executions>