[4.x] Add use to closure to pass in environment condition (#1434)

* fix: add `use` to closure to pass in environment condition

accessing `$this` inside the closure results in the foloowing error: `Target class [env] does not exist.`

* Update TelescopeServiceProvider.stub

---------

Co-authored-by: Taylor Otwell <taylor@laravel.com>

Author: LaurenceRawlings

stubs/TelescopeServiceProvider.stub

@@ -18,12 +18,11 @@ class TelescopeServiceProvider extends TelescopeApplicationServiceProvider
 
         $this->hideSensitiveRequestDetails();
 
-        Telescope::filter(function (IncomingEntry $entry) {
-            if ($this->app->environment('local')) {
-                return true;
-            }
+        $isLocal = $this->app->environment('local');
 
-            return $entry->isReportableException() ||
+        Telescope::filter(function (IncomingEntry $entry) use ($isLocal) {
+            return $isLocal ||
+                   $entry->isReportableException() ||
                    $entry->isFailedRequest() ||
                    $entry->isFailedJob() ||
                    $entry->isScheduledTask() ||