ota: Add support for legacy OTA metadata #324

Job	Run time
build (ubuntu-latest)	1m 53s
build (windows-latest)	10m 25s
build (macos-latest)	7m 20s
Prepare workflow data	11s
Preload device images (bluejay)	16s
Preload device images (bramble)	22s
Preload device images (cheetah)	18s
Preload device images (ossi)	31s
Preload device images (sunfish)	22s
Run test for bluejay on ubuntu-latest	1m 41s
Run test for bluejay on windows-latest	1m 31s
Run test for bluejay on macos-latest	1m 35s
Run test for bramble on ubuntu-latest	1m 38s
Run test for bramble on windows-latest	1m 30s
Run test for bramble on macos-latest	1m 26s
Run test for cheetah on ubuntu-latest	1m 41s
Run test for cheetah on windows-latest	1m 35s
Run test for cheetah on macos-latest	1m 33s
Run test for ossi on ubuntu-latest	3m 11s
Run test for ossi on windows-latest	3m 14s
Run test for ossi on macos-latest	2m 39s
Run test for sunfish on ubuntu-latest	1m 19s
Run test for sunfish on windows-latest	1m 38s
Run test for sunfish on macos-latest	1m 18s
	49m 7s

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