Resolve "Refactor Mattermost Gluon4.7"
General MR
Summary
Add Gluon 4.7 and refactor using shared commands
- Also noticed the Minio images were outdated, updated those as well.
Relevant logs/screenshots
BB Pipeline passed https://repo1.dso.mil/big-bang/bigbang/-/jobs/30202189
Linked Issue
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Closes #99 (closed)
Edited by Jeffrey Victor