Store upgrade certificate on decide and load on restart #4469

Job	Run time
test (async-std, test-ci-1)	13m 18s
test (async-std, test-ci-2)	19m 32s
test (async-std, test-ci-3)	11m 40s
build-release (async-std)	14m 0s
test-dependency-tasks (async-std, test-ci-1)	13m 39s
test (async-std, test-ci-4)	10m 44s
build-release (tokio)	15m 15s
test-dependency-tasks (async-std, test-ci-2)	19m 28s
test (async-std, test-ci-5)	11m 50s
test-dependency-tasks (async-std, test-ci-3)	11m 42s
test (async-std, test-ci-rest)	12m 18s
test-examples (async-std)	3m 50s
test-dependency-tasks (async-std, test-ci-4)	11m 7s
test-examples (tokio)	4m 17s
test (tokio, test-ci-1)	12m 23s
test-dependency-tasks (async-std, test-ci-5)	11m 48s
test (tokio, test-ci-2)	1h 1m 16s
test-dependency-tasks (async-std, test-ci-rest)	12m 26s
test (tokio, test-ci-3)	10m 37s
test-dependency-tasks (tokio, test-ci-1)	13m 27s
test (tokio, test-ci-4)	10m 4s
test-dependency-tasks (tokio, test-ci-2)	19m 10s
test (tokio, test-ci-5)	10m 53s
test-dependency-tasks (tokio, test-ci-3)	10m 38s
test (tokio, test-ci-rest)	11m 10s
test-dependency-tasks (tokio, test-ci-4)	10m 10s
test-dependency-tasks (tokio, test-ci-5)	11m 25s
test-dependency-tasks (tokio, test-ci-rest)	11m 4s
build-arm-release	0s
build-dockers	0s
	6h 29m 11s

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