chore(deps): bump file-type and open-cli in /packages/nc-plugin

Bumps [file-type](https://github.com/sindresorhus/file-type) to 18.0.0 and updates ancestor dependency [open-cli](https://github.com/sindresorhus/open-cli). These dependencies need to be updated together.


Updates `file-type` from 14.7.1 to 18.0.0
- [Release notes](https://github.com/sindresorhus/file-type/releases)
- [Commits](https://github.com/sindresorhus/file-type/compare/v14.7.1...v18.0.0)

Updates `open-cli` from 6.0.1 to 7.1.0
- [Release notes](https://github.com/sindresorhus/open-cli/releases)
- [Commits](https://github.com/sindresorhus/open-cli/compare/v6.0.1...v7.1.0)

---
updated-dependencies:
- dependency-name: file-type
  dependency-type: indirect
- dependency-name: open-cli
  dependency-type: direct:development
...

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

packages/nc-plugin/package.json

@@ -63,7 +63,7 @@
     "gh-pages": "^3.1.0",
     "npm-run-all": "^4.1.5",
     "nyc": "^15.1.0",
-    "open-cli": "^6.0.1",
+    "open-cli": "^7.1.0",
     "prettier": "^2.1.1",
     "standard-version": "^9.0.0",
     "ts-node": "^9.0.0",