Fix CMAKE_INSTALL_PREFIX #4409

Job	Run time
Coverage (ubuntu-22.04)	7m 14s
android-arm	6m 50s
alpine 3.19.0 (musl)	12m 49s
android-arm64	6m 44s
ubuntu-20.04 (package, non-mavsdk_server)	12m 33s
ubuntu-22.04 (package, non-mavsdk_server)	10m 46s
linux-armv6	5m 52s
android-x86	6m 26s
ubuntu-24.04 (package, non-mavsdk_server)	10m 31s
linux-armv7	5m 45s
android-x86_64	6m 38s
linux-armv6-musl	12m 43s
linux-arm64	6m 2s
linux-armv7l-musl	12m 32s
linux-arm64-lts	5m 56s
linux-arm64-musl	13m 44s
ios	1h 5m 45s
ios_simulator_x64	6m 15s
macOS x64	14m 19s
ios_simulator_arm64	1h 9m 15s
ubuntu-24.04 (style and proto check)	1m 40s
macOS arm64	7m 7s
ubuntu-20.04 (non-mavsdk_server, hunter)	4m 51s
macOS framework x64	17m 12s
ubuntu-22.04 (non-mavsdk_server, hunter)	4m 9s
macOS framework arm64	7m 40s
ubuntu-20.04 (non-mavsdk_server, non-superbuild)	8m 4s
ubuntu-20.04 (mavsdk_server, superbuild)	17m 9s
ubuntu-24.04 (non-mavsdk_server, hunter)	3m 48s
ubuntu-22.04 (non-mavsdk_server, non-superbuild)	6m 53s
ubuntu-22.04 (mavsdk_server, superbuild)	13m 6s
ubuntu-24.04 (non-mavsdk_server, non-superbuild)	6m 52s
Windows	14m 2s
ubuntu-24.04 (mavsdk_server, superbuild)	13m 22s
ubuntu-24.04 (mavsdk_server, superbuild)	13m 7s
ubuntu-24.04 (mavsdk_server, superbuild)	13m 4s
iOS XCFramework	2m 3s
	7h 32m 48s

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