Incorrect Metric Mapping for load_state_for_block_production

[skisel-bt]

Description

load_state_for_block_production blocking method is incorrectly mapped to "produce_partial_beacon_block" metric bucket.

Version

"unstable"

Present Behaviour

Currently, when the load_state_for_block_production method is invoked, it is being recorded under the "produce_partial_beacon_block" metrics. This misalignment in mapping leads to inaccurate metrics reporting for produce_partial_beacon_block method.

Expected Behaviour

The correct behavior would be for the load_state_for_block_production method to be mapped to its own dedicated metric bucket.

Steps to resolve

During a single block production a metric "produce_partial_beacon_block" is invoked twice.