[Java] Upgrade Checkstyle to 12.1.0.

Author: vyazelenko

gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 agrona = "2.3.0"
-checkstyle = "11.1.0"
+checkstyle = "12.1.0"
 commons-codec = "1.15"
 commons-lang3 = "3.8.1"
 hamcrest = "3.0"