HDRP: Fix hdrp version trouble (now return current version when no version exist)

com.unity.render-pipelines.high-definition/HDRP/Editor/Upgraders/HDRPVersion.cs

         static public int GetCurrentHDRPProjectVersion()
         {
             string[] version = new string[1];
-            version[0] = "0"; // Note: When we don't know what a project is, assume worst case 0
 
             try
             {
             {
                 // Don't display warning
                 //Debug.LogWarning("Unable to read from ProjectSettings/HDRPProjectVersion.txt - Assign default version value");
+
+                // When we don't find HDRPProjectVersion file we return the current value. Because this happen when you create new project.
+                return hdrpVersion;
             }
 
             return int.Parse(version[0]);