Bump opn-cli from 4.1.0 to 5.0.0

Bumps [opn-cli](https://github.com/sindresorhus/open-cli) from 4.1.0 to 5.0.0.
- [Release notes](https://github.com/sindresorhus/open-cli/releases)
- [Commits](sindresorhus/open-cli@v4.1.0...v5.0.0)

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

Author: dependabot-preview[bot]

npm-shrinkwrap.json

@@ -127,7 +127,7 @@
 		"jsdoc": "^3.6.2",
 		"mock-require": "^3.0.3",
 		"nyc": "^14.1.1",
-		"opn-cli": "^4.1.0",
+		"opn-cli": "^5.0.0",
 		"rimraf": "^2.6.2",
 		"sinon": "^7.3.2",
 		"tap-nyan": "^1.1.0",