Update aws-sdk-go deps

[kalafut]

Fixes #4721
Fixes #4742

[jefferai]

Watch this break something else. But, gotta do what we gotta do, unless we want to update just that package.

[kalafut]

Yeah it’s a lot of changes. I guess we have to consume it at some point, but maybe the big update can be done right after we stabilize 0.10.3 (or so) to maximize the time on it. I can rework to just get the one change in instead.

[jefferai]

Up to you -- I'd look at the surface of the change (if it's just your fixes, vs. a lot of others) because sometimes they have a lot of intermingled changes. If it's just yours though, might be worth cherry-picking and save the big update for post-0.10.3.

[kalafut]

I'm not comfortable taking in almost 70 changed files with just a few days testing. Fortunately, govendor fetch of just the affected package brings in only my change so there should be no cherry-picking required, nor broken coupling.

See PR #4744.