update the Checkstyle tool to v12.1.0

stephengold · stephengold · commit 91d8564ea245 · 2025-10-21T19:41:23.000-07:00
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
@@ -2,7 +2,7 @@
 
 [versions]
 
-checkstyle = "12.0.1"
+checkstyle = "12.1.0"
 jme = "3.9.0-alpha4"
 
 [libraries]
