fix: include gradle wrapper jar in repository

Author: irmac

.gitignore

@@ -1,13 +1,13 @@
 # Gradle
 .gradle/
 build/
-!gradle/wrapper/gradle-wrapper.jar
 !**/src/main/**/build/
 !**/src/test/**/build/
 
 # Java
 *.class
 *.jar
+!gradle/wrapper/gradle-wrapper.jar
 *.war
 *.ear
 *.log