Bump lerna from 6.6.2 to 7.4.2 (#236)

Bumps [lerna](https://github.com/lerna/lerna/tree/HEAD/packages/lerna) from 6.6.2 to 7.4.2.
- [Release notes](https://github.com/lerna/lerna/releases)
- [Changelog](https://github.com/lerna/lerna/blob/main/packages/lerna/CHANGELOG.md)
- [Commits](https://github.com/lerna/lerna/commits/v7.4.2/packages/lerna)

---
updated-dependencies:
- dependency-name: lerna
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -22,7 +22,7 @@
   "private": true,
   "devDependencies": {
     "@wearerequired/eslint-config": "file:packages/eslint-config",
-    "lerna": "^6.1.0",
+    "lerna": "^7.4.2",
     "prettier": "npm:wp-prettier@3.0.3"
   },
   "scripts": {