Revert Qt upgrade #8726

Job	Run time
build (arm64-android, android_arm64_v8a, OFF, android-arm64)	2h 56m 49s
build (arm64-android, android_arm64_v8a, OFF, android-arm64)	16m 19s
build (arm64-android, android_arm64_v8a, ON, android-arm64)	2h 56m 48s
build (arm64-android, android_arm64_v8a, ON, android-arm64)	15m 7s
build (arm-neon-android, android_armv7, OFF, android-arm-neon)	2h 56m 56s
build (arm-neon-android, android_armv7, OFF, android-arm-neon)	12m 25s
build (arm-neon-android, android_armv7, ON, android-arm-neon)	2h 56m 26s
build (arm-neon-android, android_armv7, ON, android-arm-neon)	12m 25s
build (x64-android, android_x86_64, OFF, android-x64)	2h 56m 47s
build (x64-android, android_x86_64, OFF, android-x64)	17m 51s
build (x64-android, android_x86_64, ON, android-x64)	2h 56m 51s
build (x64-android, android_x86_64, ON, android-x64)	16m 24s
build (x86-android, android_x86, OFF, android-x86)	2h 56m 49s
build (x86-android, android_x86, OFF, android-x86)	9m 38s
build (x86-android, android_x86, ON, android-x86)	2h 57m 11s
build (x86-android, android_x86, ON, android-x86)	8m 11s
comment (pr)	0s
comment (pr)	52s
deploy to play store	0s
deploy to play store	0s
comment (commit)	0s
comment (commit)	0s
	1d 1h 23m 49s

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