Bump lerna from 6.6.2 to 7.2.0

Bumps [lerna](https://github.com/lerna/lerna/tree/HEAD/packages/lerna) from 6.6.2 to 7.2.0.
- [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/v7.2.0/packages/lerna)

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

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

package.json

@@ -24,7 +24,7 @@
     "gulp-minify": "^3.1.0",
     "gulp-rename": "^2.0.0",
     "jshint": "^2.9.7",
-    "lerna": "^6.5.1"
+    "lerna": "^7.2.0"
   },
   "private": true
 }