fix(deps): update dependency rxjs to v6.5.4

Author: renovate-bot

package.json

@@ -32,7 +32,7 @@
   "dependencies": {
     "express": "4.17.1",
     "node-fetch": "2.6.0",
-    "rxjs": "6.5.3",
+    "rxjs": "6.5.4",
     "socket.io": "2.3.0",
     "webpack-dev-server": "3.10.1",
     "xhr2": "0.2.0"

yarn.lock

@@ -8491,10 +8491,10 @@ run-queue@^1.0.0, run-queue@^1.0.3:
   dependencies:
     aproba "^1.1.1"
 
-rxjs@6.5.3:
-  version "6.5.3"
-  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-6.5.3.tgz#510e26317f4db91a7eb1de77d9dd9ba0a4899a3a"
-  integrity sha512-wuYsAYYFdWTAnAaPoKGNhfpWwKZbJW+HgAJ+mImp+Epl7BG8oNWBCTyRM8gba9k4lk8BgWdoYm21Mo/RYhhbgA==
+rxjs@6.5.4:
+  version "6.5.4"
+  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-6.5.4.tgz#e0777fe0d184cec7872df147f303572d414e211c"
+  integrity sha512-naMQXcgEo3csAEGvw/NydRA0fuS2nDZJiw1YUWFKU7aPPAPGZEsD4Iimit96qwCieH6y614MCLYwdkrWx7z/7Q==
   dependencies:
     tslib "^1.9.0"