mattermostOperator update to 1.25.4-bb.0

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/product/packages/mattermost-operator/-/blob/1.25.4-bb.0/CHANGELOG.md

Package MR

big-bang/product/packages/mattermost-operator!136 (merged)

For Issue

Closes big-bang/product/packages/mattermost-operator#100 (closed)

Upgrade Notices

N/A

big-bang/product/packages/mattermost-operator#100 (closed)