Bump com.puppycrawl.tools:checkstyle from 10.7.0 to 10.8.0 (#9655)

Bumps [com.puppycrawl.tools:checkstyle](https://github.com/checkstyle/checkstyle) from 10.7.0 to 10.8.0.
- [Release notes](https://github.com/checkstyle/checkstyle/releases)
- [Commits](checkstyle/checkstyle@checkstyle-10.7.0...checkstyle-10.8.0)

---
updated-dependencies:
- dependency-name: com.puppycrawl.tools:checkstyle
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

build.gradle

@@ -216,7 +216,7 @@ dependencies {
     testImplementation "org.testfx:testfx-junit5:4.0.16-alpha"
     testImplementation "org.hamcrest:hamcrest-library:2.2"
 
-    checkstyle 'com.puppycrawl.tools:checkstyle:10.7.0'
+    checkstyle 'com.puppycrawl.tools:checkstyle:10.8.0'
     // xjc needs the runtime as well for the ant task, otherwise it fails
     xjc group: 'org.glassfish.jaxb', name: 'jaxb-xjc', version: '3.0.2'
     xjc group: 'org.glassfish.jaxb', name: 'jaxb-runtime', version: '3.0.2'