fluentbit update to 0.54.1-bb.1

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/product/packages/fluentbit/-/blob/0.54.1-bb.1/CHANGELOG.md

Package MR

big-bang/product/packages/fluentbit!267 (merged)

For Issue

Closes big-bang/product/packages/fluentbit#194 (closed)

Upgrade Notices

Fluent Bit is now leveraging our bb-common integration for network policies and Istio-related resources. Please refer to this blog post for additional information on the integration. During this process, network policy definitions have been normalized and some keys are now in kebab-case (e.g. external-elastic, external-loki, external-fluentd), so any existing overrides using older names must be updated. Loki egress is now explicitly managed through the bb-common NetworkPolicy DSL (and enabled by default for in- cluster Loki), and AuthorizationPolicy generation (when Istio hardened is enabled) is tied to service account-qualified rules; if you rely on custom ingress/egress, ensure those rules include the correct namespace/service account identity to avoid unintended denies.