[Telemetry Operator] Make collecting Kubernetes annotations and labels optional

[a-thaler]

Description

Kubernetes labels and annotations may add a significant overhead to the size of a log record. For instance through the last applied configuration as an annotation. Collecting these metadata should be optional and to be configured per LogPipeline.

Acceptance Criteria

• Collecting Kubernetes labels and annotations should be configurable per LogPipeline in the output settings
• Annotations are dropped by default. Labels are usually meaningful as you would search for logs via labels.

[chrkl]

Removing a nested key by using the record_motifier filter does not seem to work: https://github.com/fluent/fluent-bit/issues/2152. Using a Lua filter seem to be a workaround.