[Android][ci] Separate Android client build from the Android Manager build to speed-up CI #3525

Job	Run time
libs-build	1m 58s
client-build	2m 46s
apps-build	2m 37s
libs-vcpkg-build	3m 1s
client-vcpkg-build	3m 43s
apps-vcpkg-build	5m 10s
libs-cmake-build	2m 36s
libs-arm64-build	2m 28s
apps-arm64-build	9m 4s
manager-with-webview-vcpkg-build	11m 3s
server-build	4m 38s
manager-with-webview-build	7m 17s
manager-without-webview-build	7m 18s
unit-test-build	4m 3s
integration-test-build	6m 49s
	1h 14m 31s

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