update the com.android.library plugin to v8.13.1

Author: stephengold

gradle/libs.versions.toml

@@ -16,5 +16,5 @@ oshi-core = "com.github.oshi:oshi-core:6.9.1"
 
 [plugins]
 
-android-library = { id = "com.android.library", version = "8.13.0" }
+android-library = { id = "com.android.library", version = "8.13.1" }
 download = { id = "de.undercouch.download", version = "5.6.0" }