Bump HLS.js to v1.5.4

Author: jaruba

package.json

@@ -18,7 +18,7 @@
         "deep-freeze": "0.0.1",
         "eventemitter3": "4.0.7",
         "hat": "0.0.3",
-        "hls.js": "https://github.com/Stremio/hls.js/releases/download/v1.5.1-patch1/hls.js-1.5.1-patch1.tgz",
+        "hls.js": "https://github.com/Stremio/hls.js/releases/download/v1.5.4-patch1/hls.js-1.5.4-patch1.tgz",
         "lodash.clonedeep": "4.5.0",
         "magnet-uri": "6.2.0",
         "url": "0.11.0",