Usage of finalizers in LogPipeline reconciler

[skhalash]

Description

We used to rely on finalizers when generating a shared FluentBit configuration for multiple LogPipelines. The old approach looked as follows:

• When a new LogPipeline is added, a FluentBit section snippet is added to the shared config, and a finalizer is added to the LogPipeline.
• When the LogPipeline is removed, the deletion is blocked because there is a finalizer.
• LogPipeline reconciler updates the shared configuration by removing the corresponding snippet and "free" the LogPipeline by removing the finalizer

Since we deprecated this approach and are now generating a config for all LogPipelines together in every reconciliation, we don't need finalizers anymore. Furthermore, we don't use finalizers for Trace and Metric Pipelines, so we should remove them for consistency.

Acceptance Criteria

• Remove the code adding FLUENT_BIT_SECTIONS_CONFIG_MAP and FLUENT_BIT_FILES finalizers in LogPipelines
• Make sure non of the existing LogPipeline have those finalizers

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[github-actions]

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/lifecycle rotten