fix: update shaka version for TTML container fix (#327)

shaka had an issue with TTML captions which fixed on this version.

package.json

@@ -109,7 +109,7 @@
     "js-logger": "^1.3.0",
     "playkit-js-providers": "https://github.com/kaltura/playkit-js-providers.git#v2.21.1",
     "proxy-polyfill": "^0.3.0",
-    "shaka-player": "^2.5.12"
+    "shaka-player": "^2.5.13"
   },
   "repository": {
     "type": "git",

yarn.lock

@@ -7553,10 +7553,10 @@ sha.js@^2.4.0, sha.js@^2.4.8:
     inherits "^2.0.1"
     safe-buffer "^5.0.1"
 
-shaka-player@^2.5.12:
-  version "2.5.12"
-  resolved "https://registry.yarnpkg.com/shaka-player/-/shaka-player-2.5.12.tgz#4e8d9b2ab4147368b2a32f537ffed5e884301729"
-  integrity sha512-mnoMzE5iLnj6HYrovcnd55Lvd8bwV8712Inq3ECMJmBl2nYi7GXDRwYd3fLk6T0EfOsXwSELuHRQ1iyzk4NVNg==
+shaka-player@^2.5.13:
+  version "2.5.13"
+  resolved "https://registry.yarnpkg.com/shaka-player/-/shaka-player-2.5.13.tgz#f8c493b825c735fc86d619cba8b2eb2f2a382233"
+  integrity sha512-rEh7juGlTvvF10oD7+EukS12EysZXI2fiGvNLqO7GsBQ5R/sFwcTGEB8A6lWlHQXeGVbT+MxZWKMZwFE805G6A==
   dependencies:
     eme-encryption-scheme-polyfill "^2.0.1"