Promtail update to 6.15.5-bb.0

Package Merge Request

Package Changes

• Updated ironbank/opensource/grafana/promtail v2.9.2 -> v2.9.4
• Updated registry1.dso.mil/ironbank/opensource/grafana/promtail v2.9.2 -> v2.9.4
• Updated chart version to 6.15.5

Package MR

big-bang/product/packages/promtail!50 (merged)

For Issue

Closes big-bang/product/packages/promtail#30 (closed)

Upgrade Notices

N/A

added promtail statusdoing labels

assigned to @colin.mcguigan.ctr

marked this merge request as ready

added statusreview label and removed statusdoing label

requested review from @michaelmartin, @ryan.j.garcia, and @chris.oconnell

approved this merge request

changed milestone to %2.21.0

merged

mentioned in commit 3bdf9b31

mentioned in merge request big-bang/customers/template!72 (merged)