Dispatch fails by sending unprocessable entity 422

[petar-nikolovski-cif]

What happened

When using kube-hunter with --dispatch http and --report json our API fails with 422 unprocessable entity. This is because this piece of code in the dispatcher:

r = requests.request(
    dispatch_method, dispatch_url, json=report, headers={"Content-Type": "application/json"}, verify=False
)

is sending a string instead of a dictionary for json argument. That is JSONReporter class should not use json.dumps method:

class JSONReporter(BaseReporter):
    def get_report(self, **kwargs):
        report = super().get_report(**kwargs)
        return json.dumps(report)

# instead:

class JSONReporter(BaseReporter):
    def get_report(self, **kwargs):
        return super().get_report(**kwargs)

Or at least dispatch method should deserialize the report before sending it to requests: json=json.loads(report).

Expected behavior

App should be able to process entity.