fix: reduce sleep duration in UnraidCheck class

- Changed the sleep duration between checks from 0.25 seconds to 0.15 seconds in the `UnraidCheck` class to improve responsiveness during checks.

This change optimizes the checking process without altering the overall functionality.

plugin/source/dynamix.unraid.net/usr/local/emhttp/plugins/dynamix.plugin.manager/include/UnraidCheck.php

@@ -136,7 +136,7 @@ class UnraidOsCheck
                     break;
                 }
 
-                usleep(250000); // Sleep for 0.25 seconds between checks
+                usleep(150000); // Sleep for 0.15 seconds between checks
             }
 
             if (time() - $startTime >= $timeout) { // if we timeout, use the current value