chore: update default value for the request verify env variable

Author: tanhongit

config/telegram-git-notifier.php

@@ -21,7 +21,7 @@
 
         /* Required for the bot to work properly */
         'url' => env('TGN_APP_URL', env('APP_URL', 'http://localhost')).'/'.$routePrefix,
-        'request_verify' => env('TGN_REQUEST_VERIFY', 'true'),
+        'request_verify' => env('TGN_REQUEST_VERIFY', false),
     ],
 
     'bot' => [