[v1.4] Downgrade Python to 3.11 for macOS CI builds #3528

Job	Run time
ubuntu-20.04 (non-mavsdk_server, non-superbuild)	3m 7s
ubuntu-20.04 (mavsdk, hunter)	2m 55s
ubuntu-20.04 (package, non-mavsdk_server)	4m 14s
coverage (ubuntu-20.04)	3m 39s
ubuntu-20.04 (check style and docs)	3m 19s
Ubuntu/Debian packaging (Ubuntu 20.04)	4m 17s
ubuntu-20.04 (proto check)	8m 17s
ubuntu-20.04 (mavsdk_server, superbuild)	16m 30s
alpine 3.11.6 (musl)	19m 29s
android-arm	10m 25s
linux-armv6	4m 1s
linux-armv6-musl	17m 48s
android-arm64	10m 30s
linux-armv7	3m 57s
linux-armv7l-musl	18m 2s
android-x86	10m 44s
linux-arm64	3m 48s
linux-arm64-musl	18m 40s
android-x86_64	10m 55s
manylinux2010-x64	12m 36s
ios	19m 37s
macOS	22m 30s
fedora-34 (package, non-mavsdk_server)	3m 52s
macOS-framework	19m 55s
ios_simulator	28m 52s
fedora-35 (package, non-mavsdk_server)	3m 53s
Windows	27m 49s
iOS XCFramework	1m 15s
	5h 14m 56s

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