test(cloudflare-mcp): Unpin mcp sdk (#18528)

Undo #18524 as the issue has been resolved and `1.25.1` has been
released

Author: JPeer264

dev-packages/e2e-tests/test-applications/cloudflare-mcp/package.json

@@ -15,7 +15,7 @@
     "test:dev": "TEST_ENV=development playwright test"
   },
   "dependencies": {
-    "@modelcontextprotocol/sdk": "1.24.0",
+    "@modelcontextprotocol/sdk": "^1.24.0",
     "@sentry/cloudflare": "latest || *",
     "agents": "^0.2.23",
     "zod": "^3.25.76"