WIP: Plumbing for system testing #15014

Job	Run time
android	1m 48s
cpp_cmake (ubuntu-22.04)	6m 22s
build_and_test (ubuntu-22.04, stable)	11m 55s
cpp_test_driver (ubuntu-22.04)	5m 35s
cpp_cmake (macos-12)	17m 15s
build_and_test (ubuntu-22.04, 1.73)	11m 15s
cpp_cmake (windows-2022)	9m 32s
esp-idf-quick	8m 40s
cpp_test_driver (macos-12)	4m 14s
build_and_test (macos-11, stable)	33m 56s
cpp_test_driver (windows-2022)	7m 35s
build_and_test (windows-2022, stable)	23m 4s
build_and_test (windows-2022, 1.73)	23m 28s
build_and_test (windows-2022, beta, --exclude ffmpeg --exclude gstreamer-player)	22m 50s
ffi_32bit_build	1m 7s
mcu (pico-st7789, thumbv6m-none-eabi)	37s
fmt_test	1m 40s
mcu (stm32h735g, thumbv7em-none-eabihf)	33s
mcu_esp	2m 27s
miri	46s
node_test (ubuntu-22.04)	3m 2s
python_test (ubuntu-22.04)	1m 31s
node_test (macos-11)	5m 51s
uefi-demo	30s
python_test (macos-11)	2m 22s
updater_test (0.3.0)	1m 17s
node_test (windows-2022)	4m 40s
python_test (windows-2022)	3m 25s
docs / docs	5m 59s
tree-sitter / tree-sitter-tests	13s
wasm / wasm	3m 34s
wasm_demo / wasm_demo	13m 50s
wasm / lint-slintpad	27s
wasm / build-slintpad	47s
cpp_package_test	2m 25s
	4h 4m 32s

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