Metric buckets for beacon_block_processing_post_exec_pre_attestable_seconds are mis-sized

[michaelsproul]

Description

Highest value is 0.05s, i.e. 50ms, but in metrics from users we often see this taking longer:

1149:beacon_block_processing_post_exec_pre_attestable_seconds_bucket{le="0.005"} 39
1150:beacon_block_processing_post_exec_pre_attestable_seconds_bucket{le="0.01"} 39
1151:beacon_block_processing_post_exec_pre_attestable_seconds_bucket{le="0.015"} 39
1152:beacon_block_processing_post_exec_pre_attestable_seconds_bucket{le="0.02"} 39
1153:beacon_block_processing_post_exec_pre_attestable_seconds_bucket{le="0.025"} 39
1154:beacon_block_processing_post_exec_pre_attestable_seconds_bucket{le="0.030000000000000002"} 1567
1155:beacon_block_processing_post_exec_pre_attestable_seconds_bucket{le="0.034999999999999996"} 1775
1156:beacon_block_processing_post_exec_pre_attestable_seconds_bucket{le="0.04"} 1859
1157:beacon_block_processing_post_exec_pre_attestable_seconds_bucket{le="0.045"} 1880
1158:beacon_block_processing_post_exec_pre_attestable_seconds_bucket{le="0.049999999999999996"} 1894
1159:beacon_block_processing_post_exec_pre_attestable_seconds_bucket{le="+Inf"} 2029

Version

Lighthouse v4.6