Add the `accessible-placeholder-text` property #15613

Job	Run time
android	2m 40s
cpp_test_driver (ubuntu-22.04)	6m 27s
cpp_cmake (ubuntu-22.04)	6m 33s
build_and_test (ubuntu-22.04, stable)	12m 36s
cpp_test_driver (macos-12)	5m 11s
cpp_cmake (macos-12)	6m 40s
build_and_test (ubuntu-22.04, 1.73)	12m 36s
cpp_test_driver (windows-2022)	8m 51s
cpp_cmake (windows-2022)	6m 35s
build_and_test (macos-12, stable)	12m 37s
esp-idf-quick	8m 52s
ffi_32bit_build	1m 2s
fmt_test	1m 35s
build_and_test (windows-2022, stable)	12m 30s
build_and_test (windows-2022, 1.73)	12m 16s
mcu (pico-st7789, thumbv6m-none-eabi)	29s
mcu_esp	2m 28s
build_and_test (windows-2022, beta, --exclude ffmpeg --exclude gstreamer-player)	12m 29s
miri	45s
mcu (stm32h735g, thumbv7em-none-eabihf)	37s
node_test (ubuntu-22.04)	3m 24s
uefi-demo	47s
node_test (macos-12)	11m 32s
python_test (ubuntu-22.04)	1m 52s
updater_test (0.3.0)	1m 53s
python_test (macos-12)	1m 32s
node_test (windows-2022)	16m 23s
python_test (windows-2022)	3m 2s
docs / docs	7m 31s
wasm / wasm	4m 20s
tree-sitter / tree-sitter-tests	13s
wasm_demo / wasm_demo	18m 7s
cpp_package_test	0s
wasm / build-slintpad	49s
wasm / lint-slintpad	28s
	3h 25m 42s

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