trim aws sdk dependency to just sqs

[mtkp]

avoid transitive dependency issues by packaging only the aws dependencies squeedo needs.

additional cleanup:

• remove unused dependencies
• bump claypoole test dependency
• add lein ancient as a plugin
• add :manual test selector

[mtkp]

i'd be happy to do that in a follow up PR. would like to have a release with the existing sdk version but with extraneous stuff removed.