SKIP UPGRADE CHECK Draft: mattermost update to 10.2.0-bb.2

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/product/packages/mattermost/-/blob/10.2.0-bb.2/CHANGELOG.md

Package MR

big-bang/product/packages/mattermost!288 (merged)

For Issue

Closes (link to issue here)

Upgrade Notices

Any users running the builtin bitnami postgresql may need to manually back up and destroy old postgresql pods, then create new ones, for the upgrade process. This is a known limitation of the bitnami postgresql module.