Bump nouislider from 14.7.0 to 15.6.0

Bumps [nouislider](https://github.com/leongersen/noUiSlider) from 14.7.0 to 15.6.0.
- [Release notes](https://github.com/leongersen/noUiSlider/releases)
- [Changelog](https://github.com/leongersen/noUiSlider/blob/master/CHANGELOG.MD)
- [Commits](leongersen/noUiSlider@14.7.0...15.6.0)

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

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

Author: dependabot[bot]

package-lock.json

@@ -60,7 +60,7 @@
 		"lrm-graphhopper": "^1.3.0",
 		"mapbox-gl": "^2.4.1",
 		"mapbox-gl-leaflet": "^0.0.15",
-		"nouislider": "^14.0.2",
+		"nouislider": "^15.6.0",
 		"opening_hours": "^3.8.0",
 		"ua-parser-js": "^0.7.28",
 		"vue": "^2.6.14",