Bump conf from 12.0.0 to 15.0.2

Bumps [conf](https://github.com/sindresorhus/conf) from 12.0.0 to 15.0.2.
- [Release notes](https://github.com/sindresorhus/conf/releases)
- [Commits](sindresorhus/conf@v12.0.0...v15.0.2)

---
updated-dependencies:
- dependency-name: conf
  dependency-version: 15.0.2
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package-lock.json

@@ -34,7 +34,7 @@
     "axios": "^1.7.0",
     "chalk": "^5.3.0",
     "commander": "^12.0.0",
-    "conf": "^12.0.0",
+    "conf": "^15.0.2",
     "execa": "^8.0.0",
     "fs-extra": "^11.2.0",
     "inquirer": "^9.2.15",