Register processor queue length as histogram #18290

Job	Run time
target-branch-check	1s
check-msrv	5m 0s
check-code	9m 34s
Check for 'skip-ci' label	1s
beacon-chain-tests	16m 12s
cargo-udeps	7m 40s
cli-check	8m 13s
basic-simulator-ubuntu	13m 12s
compile-with-beta-compiler	14m 10s
debug-tests-ubuntu	6m 33s
ef-tests-ubuntu	13m 39s
execution-engine-integration-ubuntu	11m 41s
fallback-simulator-ubuntu	10m 54s
network-tests	8m 34s
op-pool-tests	12m 7s
release-tests-ubuntu	20m 49s
release-tests-windows	28m 34s
slasher-tests	1m 33s
state-transition-vectors-ubuntu	2m 23s
test-suite-success	0s
	3h 10m 50s

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