* fix for deleting non-bulk export files and directories
* add job worker setup and running to helper_test.go
* add infrastructure for e2e testing of workers; test ExportDelete
* linting
* use retention days in test instead of magic number
* pass a logger instead of embedding on job
* leverage mlog.Millis
* use worker logger with HandleJobPanic
* rely on existing LogClone instead
* guard Job.LogClone against nil Job
* s/workername/worker_name
* Revert "rely on existing LogClone instead"
This reverts commit 17303cbac9.
* Revert "guard Job.LogClone against nil Job"
This reverts commit f1ae22dee5.
It was a good decision in hindsight to keep the public module as 0.x
because this would have been a breaking change again.
https://mattermost.atlassian.net/browse/MM-53032
```release-note
Changed the Go module path from github.com/mattermost/mattermost-server/server/v8 to github.com/mattermost/mattermost/server/v8.
For the public facing module, it's path is also changed from github.com/mattermost/mattermost-server/server/public to github.com/mattermost/mattermost/server/public
```
https://mattermost.atlassian.net/browse/MM-52079
```release-note
We upgrade the module version to 8.0. The new module path is github.com/mattermost-server/server/v8.
```
Co-authored-by: Doug Lauder <wiggin77@warpmail.net>
