Bump checkstyle from 9.0.1 to 9.1 (#713)

Bumps [checkstyle](https://github.com/checkstyle/checkstyle) from 9.0.1 to 9.1.
- [Release notes](https://github.com/checkstyle/checkstyle/releases)
- [Commits](checkstyle/checkstyle@checkstyle-9.0.1...checkstyle-9.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

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

Author: dependabot[bot]

build.gradle

@@ -33,7 +33,7 @@ buildscript {
     }
     dependencies {
         classpath 'com.github.ben-manes:gradle-versions-plugin:0.39.0'
-        classpath 'com.puppycrawl.tools:checkstyle:9.0.1'
+        classpath 'com.puppycrawl.tools:checkstyle:9.1'
         classpath 'gradle.plugin.com.github.spotbugs.snom:spotbugs-gradle-plugin:4.7.5'
         classpath 'io.franzbecker:gradle-lombok:5.0.0'
         classpath 'io.spring.gradle:dependency-management-plugin:1.0.11.RELEASE'