Read AWS Secrets with 'SecretString'

[nick-amplify]

Closes #265

Example

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• References any related issue by including "Closes #" or "Closes ".
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[desertaxle]

Thanks for contributing @nick-amplify! Could you please add some tests covering this new functionality?

[desertaxle]

@nick-amplify just checking to see if you can write some tests for this PR 🙂

[Bryan-Meier]

I'm curious if this PR will make it into the main branch any time soon? We are wanting to leverage the SecretString functionality as all of our Secrets are in SecretString format and not SecretBinary. Thanks in advance!