mattermost update to 11.0.2-bb.0

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/product/packages/mattermost/-/blob/11.0.2-bb.0/CHANGELOG.md

Package MR

big-bang/product/packages/mattermost!333 (merged)

For Issue

Closes (big-bang/product/packages/mattermost#231 (closed))

Upgrade Notices

N/A