chore(deps): bump @opensea/seaport-js to ^4.0.7 (#1937)

Updates seaport-js to 4.0.7 which consolidates all pending dependency
updates, migrates to ESLint flat config, and modernizes tooling.

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: ryanio

package-lock.json

@@ -39,7 +39,7 @@
   },
   "types": "lib/index.d.ts",
   "dependencies": {
-    "@opensea/seaport-js": "^4.0.6",
+    "@opensea/seaport-js": "^4.0.7",
     "ethers": "^6.16.0"
   },
   "devDependencies": {