Bump get-port from 4.2.0 to 5.1.1

Bumps [get-port](https://github.com/sindresorhus/get-port) from 4.2.0 to 5.1.1.
- [Release notes](https://github.com/sindresorhus/get-port/releases)
- [Commits](sindresorhus/get-port@v4.2.0...v5.1.1)

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

package.json

@@ -68,7 +68,7 @@
     "eslint-config-prettier": "^6.11.0",
     "eslint-plugin-import": "^2.21.1",
     "eslint-plugin-prettier": "^3.1.3",
-    "get-port": "4.2.0",
+    "get-port": "5.1.1",
     "jsdoc": "3.6.6",
     "jsdoc-to-markdown": "^3.1.0-1",
     "nyc": "13.3.0",