update the Checkstyle tool to v12.3.1

stephengold · stephengold · commit 0842ab244c37 · 2025-12-31T14:33:02.000-08:00
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
@@ -3,7 +3,7 @@
 [versions]
 
 android-ndk = "29.0.14206865"
-checkstyle = "12.3.0"
+checkstyle = "12.3.1"
 
 [libraries]
 
