Bump @ensdomains/ens from 0.3.11 to 0.4.0

Bumps [@ensdomains/ens](https://github.com/ensdomains/ens) from 0.3.11 to 0.4.0.
- [Release notes](https://github.com/ensdomains/ens/releases)
- [Commits](https://github.com/ensdomains/ens/commits)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package-lock.json

@@ -41,7 +41,7 @@
     "build/contracts"
   ],
   "dependencies": {
-    "@ensdomains/ens": "0.3.11",
+    "@ensdomains/ens": "0.4.0",
     "@ensdomains/resolver": "0.1.9",
     "@openzeppelin/contracts-ethereum-package": "2.2.3",
     "@openzeppelin/gsn-helpers": "0.1.9",