externalSecrets update to 0.20.4-bb.4

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/product/packages/external-secrets/-/blob/0.20.4-bb.4/CHANGELOG.md

Package MR

big-bang/product/packages/external-secrets!139 (merged)

For Issue

Closes big-bang/product/packages/external-secrets#107 (closed)

Upgrade Notices

N/A