Merge pull request #858 from weseek/fix/857-missing-stream-to-promise

fix package dependencies

package.json

@@ -115,6 +115,7 @@
     "rimraf": "^2.6.1",
     "slack-node": "^0.1.8",
     "socket.io": "^2.0.3",
+    "stream-to-promise": "^2.2.0",
     "string-width": "^3.0.0",
     "swig-templates": "^2.0.2",
     "uglifycss": "^0.0.29",
@@ -200,7 +201,6 @@
     "sinon": "^7.2.2",
     "sinon-chai": "^3.3.0",
     "socket.io-client": "^2.0.3",
-    "stream-to-promise": "^2.2.0",
     "style-loader": "^0.23.0",
     "terser-webpack-plugin": "^1.2.2",
     "throttle-debounce": "^2.0.0",