Prometheus: Add speculative block metrics #4128

Job	Run time
Discover Versions	3s
Run Platforms Workflow / Discover Platforms	3s
Run Platforms Workflow / Platform Matrix	2s
Run Platforms Workflow / Build Platforms	0s
Run Build Workflow / Build leap (ubuntu20)	6m 27s
Run Build Workflow / Build leap (ubuntu22)	6m 17s
Build leap-dev package (ubuntu20)	9m 11s
Build leap-dev package (ubuntu22)	10m 10s
LR Tests (ubuntu20)	23m 54s
LR Tests (ubuntu22)	23m 51s
Tests (ubuntu20)	3m 5s
Tests (ubuntu22)	3m 8s
NP Tests (ubuntu20)	5m 23s
NP Tests (ubuntu22)	4m 6s
libtester tests (ubuntu20, build-tree)	6m 9s
libtester tests (ubuntu20, make-dev-install)	6m 5s
libtester tests (ubuntu20, deb-install)	4m 29s
libtester tests (ubuntu22, build-tree)	8m 32s
libtester tests (ubuntu22, make-dev-install)	7m 52s
libtester tests (ubuntu22, deb-install)	4m 32s
All Required Tests Passed	1s
	2h 13m 20s

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