mattermost update to 10.4.2-bb.1

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/product/packages/mattermost/-/blob/10.4.2-bb.1/CHANGELOG.md

Package MR

big-bang/product/packages/mattermost!293 (merged)

For Issue

Closes big-bang/product/packages/mattermost#195 (closed)

Upgrade Notices

N/A

added botmr mattermost statusdoing labels

assigned to @kershaw.jacob and @chukwuka.c.akagbusi

changed the description

requested review from @michaelmartin, @chris.oconnell, and @andrewshoell

marked this merge request as ready

changed the description

added statusreview label and removed statusdoing label

changed milestone to %2.48.0

approved this merge request

merged

mentioned in commit 539dc9cd

mentioned in merge request big-bang/customers/template!122 (merged)