Add new event for invalidateUrls.

Only run InvalidateUrls job when there's url's

src/Cacher/Cacher.php

@@ -6,6 +6,7 @@
 use Statamic\Events\UrlInvalidated;
 use Statamic\StaticCaching\Cachers\ApplicationCacher;
 use Tv2regionerne\StatamicCache\Events\FlushCache;
+use Tv2regionerne\StatamicCache\Events\InvalidateUrl;
 use Tv2regionerne\StatamicCache\Events\InvalidateUrls;
 use Tv2regionerne\StatamicCache\Models\StaticCache;
 
@@ -46,6 +47,7 @@ public function invalidateUrl($url, $domain = null)
                 $model->delete();
             });
 
+        InvalidateUrl::dispatch($url);
         // if we dont have a db entry we should still clear the cache
         $this->cache->forget($this->normalizeKey('responses:'.$this->makeHash($domain.$url)));
 
@@ -54,7 +56,9 @@ public function invalidateUrl($url, $domain = null)
 
     public function invalidateUrls($urls)
     {
-        InvalidateUrls::dispatch($urls);
+        if ($urls) {
+            InvalidateUrls::dispatch($urls);
+        }
 
         parent::invalidateUrls($urls);
     }

src/Events/InvalidateUrl.php

@@ -0,0 +1,12 @@
+<?php
+
+namespace Tv2regionerne\StatamicCache\Events;
+
+use Statamic\Events\Event;
+
+class InvalidateUrl extends Event
+{
+    public function __construct(public string $url)
+    {
+    }
+}