Bump @mediakind/mkplayer in /AdminUI/LearningHub.Nhs.AdminUI (#997)

---
updated-dependencies:
- dependency-name: "@mediakind/mkplayer"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]

AdminUI/LearningHub.Nhs.AdminUI/package-lock.json

@@ -22,7 +22,7 @@
   "dependencies": {
     "@ckeditor/ckeditor5-build-classic": "16.0.0",
     "@ckeditor/ckeditor5-vue": "1.0.3",
-    "@mediakind/mkplayer": "^1.15.0",
+    "@mediakind/mkplayer": "^1.19.0",
     "axios": "^0.19.1",
     "babel-polyfill": "^6.26.0",
     "bootstrap": "^4.6.2",