Address Nikhils feedback_ use ternary operators

Author: abhargav-mw

src/main/java/com/mathworks/ci/RunMatlabTestsBuilder.java

@@ -140,11 +140,7 @@ public String getPdfReportFilePath() {
 
     private Artifact getArtifactObject(boolean isChecked, Artifact returnVal)  {
         // If previously checked assign valid artifact object else NullArtifact.
-        if (isChecked){
-            return returnVal;
-        }else{
-            return new NullArtifact();
-        }
+        return (isChecked) ? returnVal : new NullArtifact();
     }
 
     private void setEnv(EnvVars env) {