🚀 Add agent_pool_id and agent_pool_name labels to runs metrics

[arybolovlev]

Rollback Plan

If a change needs to be reverted, we will publish an updated version of the library.

Changes to Security Controls

Are there any changes to security controls (access controls, encryption, logging) in this pull request? If so, explain.

Description

Add agent_pool_id and agent_pool_name labels to hcp_tf_runs and hcp_tf_runs_total metrics.

Usage Example

N/A.

References

N/A.

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