Added a fix for JobWatchers when the job payload is encrypted

[morloderex]

Hey guys.

I have opened this pr because i encountered a problem when using the JobEncryption feature for a given job.

Telescope assumes the Job is already ready to be unserialized and does not handle encryption

The logic have i stolen from here:
https://github.com/laravel/framework/blob/108385b4f98cacfc1ef1d6e323f57b1c2df3180f/src/Illuminate/Queue/CallQueuedHandler.php#L86-L105

Therefore i have not provided any tests sense the logic is exactly the same apart from the container not being present on the instance itself.

[taylorotwell]

Were you able to confirm this fixes the issue on your Telescope installation?

[morloderex]

Yes.

After adding this code to the watcher it was working as expected.

I can add a test case for it if it’s needed but as the code is the same as in the framework I feel like it’s testing the same thing twice.