Try JS SDK upgrade one more time

Author: RiotRobot

package.json

@@ -80,7 +80,7 @@
     "is-ip": "^2.0.0",
     "linkifyjs": "^2.1.6",
     "lodash": "^4.17.14",
-    "matrix-js-sdk": "4.0.0",
+    "matrix-js-sdk": "5.0.0-rc.1",
     "minimist": "^1.2.0",
     "pako": "^1.0.5",
     "png-chunks-extract": "^1.0.0",

yarn.lock

@@ -5760,10 +5760,10 @@ mathml-tag-names@^2.0.1:
   resolved "https://registry.yarnpkg.com/mathml-tag-names/-/mathml-tag-names-2.1.1.tgz#6dff66c99d55ecf739ca53c492e626f1d12a33cc"
   integrity sha512-pWB896KPGSGkp1XtyzRBftpTzwSOL0Gfk0wLvxt4f2mgzjY19o0LxJ3U25vNWTzsh7da+KTbuXQoQ3lOJZ8WHw==
 
-matrix-js-sdk@4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/matrix-js-sdk/-/matrix-js-sdk-4.0.0.tgz#c81bdc905af2ab1634527e5f542f2f15977d31cf"
-  integrity sha512-Xbe36xL443qtEBH4xk0k39JabolqZfloK7fwYGMb/PgWO26VOzvw94XWahnIr5w83oxBAF9nFmP+7EnPG6IHnA==
+matrix-js-sdk@5.0.0-rc.1:
+  version "5.0.0-rc.1"
+  resolved "https://registry.yarnpkg.com/matrix-js-sdk/-/matrix-js-sdk-5.0.0-rc.1.tgz#75a48d999b2eecdbfcc000e05123a00ae80039a7"
+  integrity sha512-g4b7Zf2Ws+yUnRCetpMqCSpesnRu0I+wAvFUYdoKhEGzSihEs6qADvV880Twcun1YFxYBjdB9I7ZfzCkGsi4Lw==
   dependencies:
     "@babel/runtime" "^7.8.3"
     another-json "^0.2.0"