chore(deps): v7: update Android SDK to v8.20.0 #8199

Job	Run time
diff_check / diff_check	10s
Build legacy ios dev no-frameworks	19m 29s
Build legacy android production no-frameworks	9m 24s
Build legacy ios production no-frameworks	17m 58s
Build legacy ios dev dynamic-frameworks	15m 11s
Build new android dev no-frameworks	11m 38s
Build new ios dev no-frameworks	15m 38s
Build legacy ios production dynamic-frameworks	19m 20s
Build legacy android dev no-frameworks	10m 0s
Build legacy macos production no-frameworks	11m 15s
Build legacy macos dev no-frameworks	17m 4s
Build new android production no-frameworks	13m 26s
Build new ios production no-frameworks	23m 15s
Test ios production REV2	8m 10s
Test android production REV2	4m 53s
	3h 16m 51s

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