Bug 1844533 - Fixes Glean ping uploading from background services in Kotlin

[travis79]

When Glean attempted to schedule an upload task on the WorkManager from a background process
it would get the main-process Glean when the task was executed. Since the main-process Glean
didn't have the data directory from the background process, it would not find the ping to be
able to upload it. This changes the uploader to run on the internal Glean Dispatcher when it
is being run from a background service or process and continues to rely on WorkManager for
the main process execution.

[firefoxci-taskcluster]

Uh oh! Looks like an error! Details

Client ID static/taskcluster/github does not have sufficient scopes and is missing the following scopes:

{
  "AnyOf": [
    "queue:rerun-task:glean-level-1/WPr21JSaQy-yYT1a2g-2yw/M6D_O4LGTX2cpeeEIp0Bug",
    "queue:rerun-task-in-project:none",
    {
      "AllOf": [
        "queue:rerun-task",
        "assume:scheduler-id:glean-level-1/WPr21JSaQy-yYT1a2g-2yw"
      ]
    }
  ]
}

This request requires the client to satisfy the following scope expression:

{
  "AnyOf": [
    "queue:rerun-task:glean-level-1/WPr21JSaQy-yYT1a2g-2yw/M6D_O4LGTX2cpeeEIp0Bug",
    "queue:rerun-task-in-project:none",
    {
      "AllOf": [
        "queue:rerun-task",
        "assume:scheduler-id:glean-level-1/WPr21JSaQy-yYT1a2g-2yw"
      ]
    }
  ]
}

---

• method: rerunTask
• errorCode: InsufficientScopes
• statusCode: 403
• time: 2023-07-31T08:52:11.338Z

[badboy]

Code looks good. With respect to the test see the inline comment. Maybe we can pass around the info so the test app sets the right things?