Fix benchmark reporting with subtitles of result key #1951

Job	Run time
build	12m 47s
integration-tests	14m 35s
docker-targets-build (${{ matrix.platform.platform }})	0s
check	5m 17s
unit-tests	14m 1s
worker-tests-group1	4m 16s
cli-tests	14m 32s
sharding-tests	13m 20s
worker-tests-group2	17m 23s
worker-tests-group3	4m 30s
worker-tests-group4	4m 15s
worker-tests-group5	11m 0s
docker-publish	0s
publish	0s
	1h 55m 56s

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