Updated payload args in FileUploadTest to match what production code is looking for; Added Intellij project files to .gitignore

.gitignore

@@ -1,5 +1,7 @@
 /target
 .classpath
 .project
+.idea
 .settings/
 pwntest
+*.iml

src/test/java/ysoserial/payloads/FileUploadTest.java

@@ -65,7 +65,7 @@ public class FileUploadTest implements CustomTest {
     }
 
     public String getPayloadArgs () {
-        return "copyAndDelete:" + this.source.getAbsolutePath() + ":" + this.repo.getAbsolutePath();
+        return "copyAndDelete;" + this.source.getAbsolutePath() + ";" + this.repo.getAbsolutePath();
     }
 
 }