feat!: Update storage APIs to accept `StoragePath` #1721

Job	Run time
test / test-dart-vm (3.0.1)	2m 9s
test / test-dart-vm (stable)	2m 22s
native_test / test-dart-native (macos-latest)	3m 15s
native_test / test-dart-native (windows-latest)	4m 12s
dart2js_test / test-dart-2js (3.0.1, chrome)	4m 10s
ddc_test / test-dart-ddc (3.0.1, chrome)	3m 18s
dart2js_test / test-dart-2js (3.0.1, firefox)	4m 23s
ddc_test / test-dart-ddc (3.0.1, firefox)	3m 35s
dart2js_test / test-dart-2js (stable, chrome)	4m 14s
ddc_test / test-dart-ddc (stable, chrome)	3m 48s
dart2js_test / test-dart-2js (stable, firefox)	5m 5s
ddc_test / test-dart-ddc (stable, firefox)	3m 56s
	44m 27s

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