Add Ackee entry to meta.json with relevant details and links

- Included Ackee as a self-hosted analytics tool with its description, logo, and associated links.
- Added tags for better categorization.

meta.json

@@ -1892,5 +1892,21 @@
       "postgres",
       "admin"
     ]
+  },
+  {
+    "id": "ackee",
+    "name": "Ackee",
+    "version": "latest",
+    "description": "Ackee is a self-hosted analytics tool for your website.",
+    "logo": "logo.png",
+    "links": {
+      "github": "https://github.com/electerious/Ackee",
+      "website": "https://ackee.electerious.com/",
+      "docs": "https://docs.ackee.electerious.com/"
+    },
+    "tags": [
+      "analytics",
+      "self-hosted"
+    ]
   }
 ]