Bump shaka-player from 2.5.11 to 2.5.12

Bumps [shaka-player](https://github.com/google/shaka-player) from 2.5.11 to 2.5.12.
- [Release notes](https://github.com/google/shaka-player/releases)
- [Changelog](https://github.com/google/shaka-player/blob/master/CHANGELOG.md)
- [Commits](https://github.com/google/shaka-player/compare/v2.5.11...v2.5.12)

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

package.json

@@ -76,7 +76,7 @@
     "query-string": "^6.11.1",
     "resize-observer-polyfill": "^1.5.1",
     "screenfull": "^5.0.2",
-    "shaka-player": "^2.5.11",
+    "shaka-player": "^2.5.12",
     "sortablejs": "^1.10.2",
     "swiper": "^5.4.1",
     "webcomponents.js": "^0.7.24",