Distribution channel name in metrics is null after Glean updates.

[daoshengmu]

Configuration

Firefox Reality version: v.10
Firefox Reality build ID:

Hardware:
All devices

Steps to Reproduce

1. Watch the telemetry query from https://sql.telemetry.mozilla.org/queries/69899/source#176133,
   we can see the distribution_channel_name in metrics would be null sometimes.

Current Behavior

After FxR v.9, the distribution_channel_name would be null from some situations. I think it causes by the recent Glean updates.

Expected Behavior

distribution_channel_name should be according to BuildConfig.FLAVOR_platform.

Possible Solution

After discussion with Glean team, they suggest us setting metrics after Glean.Initialize(). Otherwise, those pings and operations will be deleted in some cases.

[daoshengmu]

It needs to update GV for the newest version of Glean. Let's move it to v.11

[bluemarvin]

@daoshengmu Is this fixed in v11 or should it be moved to v12?

[daoshengmu]

Fixed by #3384