[8.x] Allow to override discover events base path (#36515)

* Allow to override discover events base path

* Update EventServiceProvider.php

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

src/Illuminate/Foundation/Support/Providers/EventServiceProvider.php

@@ -119,7 +119,7 @@ public function discoverEvents()
                     ->reduce(function ($discovered, $directory) {
                         return array_merge_recursive(
                             $discovered,
-                            DiscoverEvents::within($directory, base_path())
+                            DiscoverEvents::within($directory, $this->eventDiscoveryBasePath())
                         );
                     }, []);
     }
@@ -135,4 +135,14 @@ protected function discoverEventsWithin()
             $this->app->path('Listeners'),
         ];
     }
+
+    /**
+     * Get the base path to be used during event discovery.
+     *
+     * @return string
+     */
+    protected function eventDiscoveryBasePath()
+    {
+        return base_path();
+    }
 }