fix windows-related timing issues

Author: sebastianMindee

src/CustomSleepMixin.php

@@ -17,6 +17,12 @@ protected static function customSleep(float|int $delay): void
 
         $seconds = intval($delay);
         $nanoseconds = abs($seconds - (float) $delay);
+        if (
+            strtoupper(substr(PHP_OS_FAMILY, 0, 7)) === 'WINDOWS' &&
+            $nanoseconds > 0.000000001
+        ) {
+            usleep(100000);
+        }
         time_nanosleep($seconds, (int) ($nanoseconds * 1_000_000_000));
     }
 }

tests/CustomSleepMixinTest.php

@@ -22,7 +22,7 @@ public function testCustomSleep1Second(): void {
     }
 
     public function testCustomSleep0dot33Seconds(): void {
-        $lowerBound = 0.32; // Note: Windows struggles to run this one consistently when < 1 second
+        $lowerBound = 0.33;
         $upperBound = 0.43;
 
         $start = microtime(true);