Move completed-epoch handling out of task_manager #4651

Job	Run time
clang-tidy	10m 31s
read-build-matrix	8s
build-and-test (dpcpp, ad494e9d, false, 22.04, intel, Debug)	10m 27s
build-and-test (dpcpp, ad494e9d, false, 22.04, intel, Release)	10m 41s
build-and-test (dpcpp, latest, true, 24.04, intel, Debug)	11m 45s
build-and-test (dpcpp, latest, true, 24.04, intel, Release)	11m 40s
build-and-test (acpp, v24.06.0, false, 22.04, nvidia, Debug)	13m 28s
build-and-test (acpp, v24.06.0, false, 22.04, nvidia, Release)	16m 13s
build-and-test (acpp, latest, true, 24.04, nvidia, Debug)	16m 36s
build-and-test (acpp, latest, true, 24.04, nvidia, Release)	14m 36s
build-and-test (simsycl, HEAD, true, 24.04, intel, Release)	8m 47s
build-and-test (simsycl, HEAD, true, 24.04, intel, Debug)	12m 48s
report	27s
tag-latest-containers	0s
	2h 18m 7s

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