chore(deps-dev): bump lerna from 6.5.1 to 6.6.1

Bumps [lerna](https://github.com/lerna/lerna/tree/HEAD/packages/lerna) from 6.5.1 to 6.6.1.
- [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/6.6.1/packages/lerna)

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

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

package.json

@@ -61,7 +61,7 @@
     "eslint-plugin-import": "^2.27.5",
     "eslint-plugin-lit": "^1.8.2",
     "eslint-plugin-wc": "^1.4.0",
-    "lerna": "^6.5.1",
+    "lerna": "^6.6.1",
     "npm-run-all": "^4.1.5",
     "prettier": "^2.8.6",
     "ts-lit-plugin": "^1.2.1",