WebHost: update flask (#2250)

* WebHost: update flask

* WebHost: update flask-caching

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Co-authored-by: black-sliver <59490463+black-sliver@users.noreply.github.com>

WebHostLib/__init__.py

@@ -50,7 +50,6 @@ app.config["PONY"] = {
 }
 app.config["MAX_ROLL"] = 20
 app.config["CACHE_TYPE"] = "SimpleCache"
-app.config["JSON_AS_ASCII"] = False
 app.config["HOST_ADDRESS"] = ""
 
 cache = Cache()