Bump string-width from 4.2.3 to 5.1.2

Bumps [string-width](https://github.com/sindresorhus/string-width) from 4.2.3 to 5.1.2.
- [Release notes](https://github.com/sindresorhus/string-width/releases)
- [Commits](sindresorhus/string-width@v4.2.3...v5.1.2)

---
updated-dependencies:
- dependency-name: string-width
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package-lock.json

@@ -88,7 +88,7 @@
     "escape-string-regexp": "^4.0.0",
     "semver": "^7.3.7",
     "solidity-comments-extractor": "^0.0.7",
-    "string-width": "^4.2.3"
+    "string-width": "^5.1.2"
   },
   "peerDependencies": {
     "prettier": "^2.3.0"