Bump follow-redirects in /samples/react-property-pane-navigation

Bumps [follow-redirects](https://github.com/follow-redirects/follow-redirects) from 1.15.5 to 1.15.6.
- [Release notes](https://github.com/follow-redirects/follow-redirects/releases)
- [Commits](https://github.com/follow-redirects/follow-redirects/compare/v1.15.5...v1.15.6)

---
updated-dependencies:
- dependency-name: follow-redirects
  dependency-type: indirect
...

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

samples/react-property-pane-navigation/package-lock.json

@@ -15420,9 +15420,9 @@
 			}
 		},
 		"node_modules/follow-redirects": {
-			"version": "1.15.5",
-			"resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.15.5.tgz",
-			"integrity": "sha512-vSFWUON1B+yAw1VN4xMfxgn5fTUiaOzAJCKBwIIgT/+7CuGy9+r+5gITvP62j3RmaD5Ph65UaERdOSRGUzZtgw==",
+			"version": "1.15.6",
+			"resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.15.6.tgz",
+			"integrity": "sha512-wWN62YITEaOpSK584EZXJafH1AGpO8RVgElfkuXbTOrPX4fIfOyEpW/CsiNd8JdYrAoOvafRTOEnvsO++qCqFA==",
 			"dev": true,
 			"funding": [
 				{