[4.x] Change tenant storage listeners into jobs

[lukinovec]

The CreateTenantStorage and DeleteTenantStorage listeners were used alongside JobPipelines. When the TenantCreated JobPipeline had shouldBeQueued(true) and the Listeners\CreateTenantStorage was uncommented, the listener would throw an exception (Stancl\Tenancy\Database\Exceptions\TenantDatabaseDoesNotExistException Database tenantX.sqlite does not exist.) because at the time of executing the listener, the tenant DB wasn't created yet.

This PR changes CreateTenantStorage and DeleteTenantStorage into jobs and puts these commented jobs into the JobPipelines, so that they can be queued with the rest of the jobs.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.19%. Comparing base (c4960b7) to head (5b2cce3).

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1446      +/-   ##
============================================
+ Coverage     86.05%   86.19%   +0.13%     
- Complexity     1152     1154       +2     
============================================
  Files           184      184              
  Lines          3371     3375       +4     
============================================
+ Hits           2901     2909       +8     
+ Misses          470      466       -4     

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