feat(ecosystem): Add Toucan to ecosystem.json

Author: Adam Spiers

apps/web/public/images/partners/toucan.png

@@ -3014,6 +3014,15 @@
     "category": "consumer",
     "subcategory": "social"
   },
+  {
+    "name": "Toucan",
+    "tags": [
+      "defi"
+    ],
+    "description": "Toucan provides onchain infrastructure and liquid markets for carbon removal credits, making climate action directly accessible to Base's users and decentralized apps.",
+    "url": "https://toucan.earth/",
+    "imageUrl": "/images/partners/toucan.png"
+  },
   {
     "name": "Warpcast",
     "description": "Warpcast is a Farcaster client.",