chore: add group to usage event

src/Appwrite/Event/Usage.php

@@ -51,6 +51,22 @@ class Usage extends Event
         return $this;
     }
 
+    /**
+     * Add group.
+     *
+     * @param string $key
+     * @return self
+     */
+    public function addGroup(string $key): self
+    {
+
+        $this->metrics[] = [
+            'group' => $key,
+        ];
+
+        return $this;
+    }
+
     /**
      * Sends metrics to the usage worker.
      *

src/Appwrite/Platform/Workers/UsageDump.php

@@ -78,7 +78,6 @@ class UsageDump extends Action
             /**
              * End temp bug fallback
              */
-
             $numberOfKeys = !empty($stats['keys']) ? count($stats['keys']) : 0;
             $receivedAt = $stats['receivedAt'] ?? 'NONE';
             if ($numberOfKeys === 0) {