chore: resolve swiftlint errors and warnings in Amplify Storage plugi… #181

Job	Run time
Build Amplify Swift for iOS / Build Amplify-Package \| iOS	25s
Build Amplify Swift for macOS / Build Amplify-Package \| macOS	25s
Build Amplify Swift for tvOS / Build Amplify-Package \| tvOS	24s
Build Amplify Swift for watchOS / Build Amplify-Package \| watchOS	23s
Confirm Passing Build Steps	1s
	1m 38s

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