[INLONG-6194][Agent] Support parsing metrics for different components

[Keylchen]

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Support different components to parse their related metric.

• Fixes #6194

Motivation

Because the metrics uploaded by different agent components may be different, I split the metric item id_counter of prometheus and use KEY_PLUGIN_ID or KEY_COMPONENT_NAME as the primary key.

It is convenient for the different metric operation behind, and then there will be no common empty data dimension in different component.