istio update to 1.21.2-bb.2

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/product/packages/istio-controlplane/-/blob/1.21.2-bb.2/CHANGELOG.md

Package MR

big-bang/product/packages/istio-controlplane!282 (merged)

For Issue

Closes (link to issue here)

Upgrade Notices

N/A

added botmr istio statusreview labels

assigned to @stephen.galamb

changed the description

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

changed milestone to %2.29.0

approved this merge request

mentioned in merge request !4431 (closed)

marked this merge request as ready

merged

mentioned in commit 5d31441e

picked the changes into the branch release-2.29.x with commit fb700b97

mentioned in commit fb700b97

mentioned in merge request big-bang/customers/template!82 (merged)