Update swagger-ui to 3.20.4

package-lock.json

@@ -352,9 +352,9 @@
       "integrity": "sha1-OUE/7p0CXHSn5ZzuyyN4TMDxfwI="
     },
     "swagger-ui-dist": {
-      "version": "3.20.3",
+      "version": "3.20.4",
-      "resolved": "https://registry.npmjs.org/swagger-ui-dist/-/swagger-ui-dist-3.20.3.tgz",
+      "resolved": "https://registry.npmjs.org/swagger-ui-dist/-/swagger-ui-dist-3.20.4.tgz",
-      "integrity": "sha512-2O+uWBROdj7WLIIWabJe8TlQJiGgr96rmayPzp+pek/iIcUYoqKG+0icJL09Z9bZAAk3nWOTjTwU53XmjtCN7w=="
+      "integrity": "sha512-SR/N+N7EIncEhyA4UGiMQ12vJBSv5OKO4S1g7E7etO+9ZUV6SZ7SqKVC8RDDyMOJzdXgMXV7aGIBIiMSCbEMJw=="
     },
     "tiny-emitter": {
       "version": "2.0.2",

package.json

@@ -2,7 +2,7 @@
   "name": "drf-yasg",
   "dependencies": {
     "redoc": "^2.0.0-alpha.41",
-    "swagger-ui-dist": "^3.20.3"
+    "swagger-ui-dist": "^3.20.4"
   },
   "repository": {
     "type": "git",