[mirotalksfu] - add API join endpoint + swagger doc

package.json

@@ -29,7 +29,7 @@
         "yamljs": "0.3.0"
     },
     "devDependencies": {
-        "node-fetch": "3.1.0",
+        "node-fetch": "2.6.6",
         "prettier": "2.5.1"
     }
 }