Bump swiper from 6.4.11 to 6.4.15

Bumps [swiper](https://github.com/nolimits4web/Swiper) from 6.4.11 to 6.4.15.
- [Release notes](https://github.com/nolimits4web/Swiper/releases)
- [Changelog](https://github.com/nolimits4web/swiper/blob/master/CHANGELOG.md)
- [Commits](https://github.com/nolimits4web/Swiper/compare/v6.4.11...v6.4.15)

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

package.json

@@ -76,7 +76,7 @@
     "resize-observer-polyfill": "^1.5.1",
     "screenfull": "^5.1.0",
     "sortablejs": "^1.13.0",
-    "swiper": "^6.4.11",
+    "swiper": "^6.4.15",
     "webcomponents.js": "^0.7.24",
     "whatwg-fetch": "^3.5.0",
     "workbox-core": "^5.1.4",