chore(smithy,auth): Dart 3.3.0 Beta Analysis Errors (#4354) #1435

Job	Run time
test / test-dart-vm (3.0.1)	2m 22s
test / test-dart-vm (stable)	2m 23s
test / test-dart-vm (beta)	2m 17s
ddc_test / test-dart-ddc (3.0.1, chrome)	11m 36s
ddc_test / test-dart-ddc (3.0.1, firefox)	11m 55s
native_test / test-dart-native (macos-latest)	2m 43s
ddc_test / test-dart-ddc (stable, chrome)	10m 23s
native_test / test-dart-native (windows-latest)	4m 7s
ddc_test / test-dart-ddc (stable, firefox)	10m 34s
ddc_test / test-dart-ddc (beta, chrome)	10m 43s
ddc_test / test-dart-ddc (beta, firefox)	10m 35s
dart2js_test / test-dart-2js (3.0.1, chrome)	20m 4s
dart2js_test / test-dart-2js (3.0.1, firefox)	19m 39s
dart2js_test / test-dart-2js (stable, chrome)	16m 58s
dart2js_test / test-dart-2js (stable, firefox)	18m 33s
dart2js_test / test-dart-2js (beta, chrome)	17m 49s
dart2js_test / test-dart-2js (beta, firefox)	18m 38s
	3h 11m 19s

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