Bump @npmcli/arborist from 6.1.5 to 6.1.6 in /npm_and_yarn/helpers

Bumps [@npmcli/arborist](https://github.com/npm/cli/tree/HEAD/workspaces/arborist) from 6.1.5 to 6.1.6.
- [Release notes](https://github.com/npm/cli/releases)
- [Changelog](https://github.com/npm/cli/blob/latest/workspaces/arborist/CHANGELOG.md)
- [Commits](https://github.com/npm/cli/commits/arborist-v6.1.6/workspaces/arborist)

---
updated-dependencies:
- dependency-name: "@npmcli/arborist"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

npm_and_yarn/helpers/package.json

@@ -10,7 +10,7 @@
   },
   "dependencies": {
     "@dependabot/yarn-lib": "^1.22.19",
-    "@npmcli/arborist": "^6.1.5",
+    "@npmcli/arborist": "^6.1.6",
     "detect-indent": "^6.1.0",
     "nock": "^13.2.9",
     "npm": "6.14.18",