feat(storage): allow the s3 list api to accept an optional bucket #2145

Job	Run time
test / test-dart-vm (3.3.0)	1m 27s
test / test-dart-vm (stable)	1m 32s
ddc_test / test-dart-ddc (3.3.0, chrome)	3m 17s
dart2js_test / test-dart-2js (3.3.0, chrome)	3m 44s
ddc_test / test-dart-ddc (3.3.0, firefox)	3m 31s
dart2js_test / test-dart-2js (3.3.0, firefox)	4m 30s
ddc_test / test-dart-ddc (stable, chrome)	3m 16s
dart2js_test / test-dart-2js (stable, chrome)	3m 36s
dart2js_test / test-dart-2js (stable, firefox)	3m 51s
ddc_test / test-dart-ddc (stable, firefox)	3m 5s
native_test / test-dart-native (macos-14)	3m 17s
native_test / test-dart-native (windows-latest)	4m 58s
	40m 4s

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