Bump checkstyle from 10.0 to 10.1 (#8620)

Bumps [checkstyle](https://github.com/checkstyle/checkstyle) from 10.0 to 10.1.
- [Release notes](https://github.com/checkstyle/checkstyle/releases)
- [Commits](checkstyle/checkstyle@checkstyle-10.0...checkstyle-10.1)

---
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

@@ -215,7 +215,7 @@ dependencies {
     testImplementation "org.testfx:testfx-junit5:4.0.17-alpha-SNAPSHOT"
     testImplementation "org.hamcrest:hamcrest-library:2.2"
 
-    checkstyle 'com.puppycrawl.tools:checkstyle:10.0'
+    checkstyle 'com.puppycrawl.tools:checkstyle:10.1'
     // 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'