Pin engine.io subdependency to v3.3.x

Turbo87 · Turbo87 · commit c2fc56c6975c · 2019-09-26T15:46:08.000+02:00
... which still supports Node.js 6 see socketio/engine.io#589
diff --git a/package.json b/package.json
@@ -107,6 +107,7 @@
   },
   "homepage": "https://github.com/offirgolan/ember-cp-validations",
   "resolutions": {
+    "**/engine.io": "~3.3.0",
     "sass/chokidar": "^2.0.0"
   }
 }

Original file line number	Diff line number	Diff line change
`@@ -107,6 +107,7 @@`
`107`	`107`	`},`
`108`	`108`	`"homepage": "https://github.com/offirgolan/ember-cp-validations",`
`109`	`109`	`"resolutions": {`
	`110`	`+ "**/engine.io": "~3.3.0",`
`110`	`111`	`"sass/chokidar": "^2.0.0"`
`111`	`112`	`}`
`112`	`113`	`}`