Rename to lab12

src/main/java/java2/koz01/lab12/package-info.java

+
+package java2.koz01.lab12;

src/main/java/java2/koz01/lab13/package-info.java

-
-package java2.koz01.lab13;

src/main/java/module-info.java

-module java2.koz01.lab13 {
-    exports java2.koz01.lab13;
+module java2.koz01.lab12 {
+    exports java2.koz01.lab12;
 
 		requires lombok;
 		requires org.apache.logging.log4j;