Bump @metamask/eth-sig-util from 4.0.1 to 5.0.2

Bumps [@metamask/eth-sig-util](https://github.com/MetaMask/eth-sig-util) from 4.0.1 to 5.0.2.
- [Release notes](https://github.com/MetaMask/eth-sig-util/releases)
- [Changelog](https://github.com/MetaMask/eth-sig-util/blob/main/CHANGELOG.md)
- [Commits](MetaMask/eth-sig-util@v4.0.1...v5.0.2)

---
updated-dependencies:
- dependency-name: "@metamask/eth-sig-util"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -46,7 +46,7 @@
     "@ethersproject/contracts": "^5.0.0",
     "@ethersproject/hardware-wallets": "^5.0.14",
     "@ethersproject/providers": "^5.0.0",
-    "@metamask/eth-sig-util": "^4.0.1",
+    "@metamask/eth-sig-util": "^5.0.2",
     "@nomiclabs/hardhat-ethers": "2.0.4",
     "@nomiclabs/hardhat-etherscan": "3.0.0",
     "@nomiclabs/hardhat-waffle": "2.0.2",