mavsdk_tests: add multicopter alt hold test #3258

Job	Run time
Scan for Board Targets	31s
Build Group [base-px4]	5m 33s
Build Group [nuttx-micoair]	5m 48s
Build Group [nuttx-mro-0]	11m 24s
Build Group [nuttx-mro-1]	2m 56s
Build Group [nuttx-cuav]	7m 19s
Build Group [nuttx-px4-0]	10m 49s
Build Group [nuttx-px4-1]	8m 29s
Build Group [nuttx-px4-2]	10m 7s
Build Group [nuttx-px4-3]	12m 10s
Build Group [nuttx-cubepilot]	8m 18s
Build Group [nuttx-matek]	6m 38s
Build Group [nuttx-nxp-0]	11m 34s
Build Group [nuttx-nxp-1]	4m 13s
Build Group [nuttx-ark-0]	6m 46s
Build Group [nuttx-ark-1]	5m 5s
Build Group [nuttx-holybro-0]	8m 25s
Build Group [nuttx-holybro-1]	4m 52s
Build Group [nuttx-0]	10m 34s
Build Group [nuttx-1]	11m 35s
Build Group [nuttx-2]	10m 40s
Build Group [nuttx-3]	3m 54s
Build Group [armhf-0]	4m 14s
Build Group [aarch64-0]	2m 27s
Create Release and Upload Artifacts	0s
Upload Artifacts to S3	0s
	2h 54m 21s

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