Option to set custom snapshot locking time

This way you can schedule snapshots every minute, every two minutes
and set the locking time the same so they can be stored and shown
in the horizon dashboard.

config/horizon.php

@@ -113,8 +113,9 @@
     |--------------------------------------------------------------------------
     |
     | Here you can configure how many snapshots should be kept to display in
-    | the metrics graph. This will get used in combination with Horizon's
-    | `horizon:snapshot` schedule to define how long to retain metrics.
+    | the metrics graph and how often they can be stored.
+    | This will get used in combination with Horizon's `horizon:snapshot`
+    | schedule to define how long to retain metrics.
     |
     */
 
@@ -123,6 +124,7 @@
             'job' => 24,
             'queue' => 24,
         ],
+        'snapshot_lock' => 300,
     ],
 
     /*

src/Console/SnapshotCommand.php

@@ -31,7 +31,7 @@ class SnapshotCommand extends Command
      */
     public function handle(Lock $lock, MetricsRepository $metrics)
     {
-        if ($lock->get('metrics:snapshot', 300)) {
+        if ($lock->get('metrics:snapshot', config('horizon.metrics.snapshot_lock', 300))) {
             $metrics->snapshot();
 
             $this->info('Metrics snapshot stored successfully.');