Update windev.ps1 (#3016)

Update the text if no pre-release is found and change the text color from red to yellow to mark this as a warning instead of an error

windev.ps1

@@ -30,7 +30,7 @@ function RedirectToLatestPreRelease {
     if ($latestRelease) {
         $url = "https://github.com/ChrisTitusTech/winutil/releases/download/$latestRelease/winutil.ps1"
     } else {
-        Write-Host 'Unable to determine latest pre-release version.' -ForegroundColor Red
+        Write-Host 'No pre-release version found. This is most likely because the latest release is a full release and no newer pre-release exists.' -ForegroundColor Yellow
         Write-Host "Using latest Full Release"
         $url = "https://github.com/ChrisTitusTech/winutil/releases/latest/download/winutil.ps1"
     }