chore(deps): update ghauth requirement from ^6.0.14 to ^6.0.15

Updates the requirements on [ghauth](https://github.com/rvagg/ghauth) to permit the latest version.
- [Release notes](https://github.com/rvagg/ghauth/releases)
- [Changelog](https://github.com/rvagg/ghauth/blob/master/CHANGELOG.md)
- [Commits](rvagg/ghauth@v6.0.14...v6.0.15)

---
updated-dependencies:
- dependency-name: ghauth
  dependency-version: 6.0.15
  dependency-type: direct:production
...

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

Author: dependabot[bot]

package.json

@@ -26,7 +26,7 @@
     "deep-extend": "^0.6.0",
     "gauge": "^5.0.2",
     "gh-release-assets": "^2.0.1",
-    "ghauth": "^6.0.14",
+    "ghauth": "^6.0.15",
     "github-url-to-object": "^4.0.6",
     "inquirer": "^8.2.6",
     "shelljs": "^0.10.0",