Semver concerns about ex_aws

[epinault]

Ah gotcha . Yea that's quite misleading . Might want to update the change log then as it for us quite a bit concerned with the changes

[woylie]

Regarding HTTPotion, it seems like it was only changed in the tests. Otherwise, the default HTTP client still seems to be Hackney. The changelog entry is a bit misleading.

[bernardd]

I don't really agree that no longer supporting a deprecated version of Elixir should be a new major version number (though I understand the point of view). The fact that the language version itself is no longer receiving security patches means that upgrading that should be a much higher priority than sticking to the latest version of ex_aws. And on the other hand, if we did increment the major version, bumping the minimum supported Elixir version to be the...minimum supported Elixir version (if you follow me) would mean a new major version every six months, which would be a bit silly.

More than happy to fix up the changelog, though - I'll tweak it shortly.