Use new AGP 8.4.0 apis to fetch variant sources #1582

Job	Run time
provide-agp-version-matrix	3s
build	3m 31s
icons-test (28)	6m 26s
Configuration Cache Java-17 OS-ubuntu-latest	3m 40s
Configuration Cache Java-17 OS-windows-latest	6m 27s
Configuration Cache Java-17 OS-macos-latest	6m 28s
Configuration Cache Java-21 OS-ubuntu-latest	3m 56s
Configuration Cache Java-21 OS-windows-latest	6m 30s
Configuration Cache Java-21 OS-macos-latest	6m 40s
Run Gradle-release-candidate, AGP-8.3.0, Java-17	6m 21s
Run Gradle-release-candidate, AGP-8.3.0-beta02, Java-17	2m 27s
Run Gradle-release-candidate, AGP-8.4.0-alpha13, Java-17	6m 22s
Run Gradle-release-candidate, AGP-8.3.0, Java-21	6m 16s
Run Gradle-release-candidate, AGP-8.3.0-beta02, Java-21	2m 1s
Run Gradle-release-candidate, AGP-8.4.0-alpha13, Java-21	6m 14s
Run Gradle-8.0, AGP-8.0.0, Java-17	2m 38s
Run Gradle-current, AGP-8.0.0, Java-17	2m 23s
Run Gradle-current, AGP-8.0.0, Java-19	2m 6s
	1h 20m 29s

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