[10.x] Only use Carbon if accessed from Laravel or also uses (#49772)

`illuminate/support`

fixes #49765

Signed-off-by: Mior Muhammad Zaki <crynobone@gmail.com>

src/Illuminate/Collections/LazyCollection.php

@@ -1740,6 +1740,8 @@ protected function passthru($method, array $params)
      */
     protected function now()
     {
-        return Carbon::now()->timestamp;
+        return class_exists(Carbon::class)
+            ? Carbon::now()->timestamp
+            : time();
     }
 }