fix(android): use proguard-android-optimize for AGP 9 compatibility #25

Job	Run time
test / lint	1m 43s
test / setup	5s
test / guard_swiftpm_version	3s
test / test-android	4m 4s
test / test-core	1m 32s
test / test-cli	3m 13s
test / test-ios (/Applications/Xcode_26.0.app)	30m 21s
Bump version and create tag	0s
	41m 1s

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