Fix cache duration to work on 32-bit systems

Fixes #107

Author: mikebronner

config/geocoder.php

@@ -12,7 +12,7 @@
 use Http\Client\Curl\Client;
 
 return [
-    'cache-duration' => 999999999,
+    'cache-duration' => 9999999,
     'providers' => [
         Chain::class => [
             GoogleMaps::class => [