Update dependency checkstyle to v10.12.1 (#172)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

build.gradle

@@ -105,7 +105,7 @@ task smoke(type: Test) {
 
 checkstyle {
   maxWarnings = 0
-  toolVersion = '10.12.0'
+  toolVersion = '10.12.1'
   getConfigDirectory().set(new File(rootDir, 'config/checkstyle'))
 }