feat: FluentBit annotations via operator chart values

[clive-jevons]

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #1985

Does this PR introduced a user-facing change?

Added ability to customize the `FluentBit.metadata.annotations` generated via the `fluent-operator` Helm chart via the values with `fluentbit.metadata.annotations`

Additional documentation, usage docs, etc.:

Example for customizing the `FluentBit` annotations:

fluentbit:
  metadata:
    annotations:
      my.org/some-annotation: some-value
      reloader.stakater.com/auto: "true"

[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Adds support for user-defined annotations on the Fluent Bit (FluentBit CR) resource generated by the fluent-operator Helm chart.

Changes:

• Introduces fluentbit.metadata.annotations in values.yaml.
• Renders optional metadata.annotations into the FluentBit manifest template when provided.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
charts/fluent-operator/values.yaml	Adds a new values entry for custom FluentBit metadata annotations.
charts/fluent-operator/templates/fluentbit-fluentBit.yaml	Conditionally renders metadata.annotations from the new values entry.