Provide Simple Unit Test Example for StripeWebhooks Job

[xicond]

Provide Simple Unit Test Example for StripeWebhooks Job, mock the request process until instantiate the Job

I'm updating to new version, since the config changed, I should use new config class but I'm not
it shown #124 Attribute [stripeWebhooks] does not exist
Luckily I monitored the error message on slack and caught this

As I know Jetstream also provide Example Test can publish using artisan