Awscurl

* Set exit code based on HTTP request status - this provides better integration with other command line tools

Feature updates

drop python 2.7 support
update URL encode non-alpha query string parameters
Developer experience

add/update dockerhub workflow
add Github (ghcr) docker registry publishing
add gitpod linking to simplify external contributions

Minor feature release:
* Merge use CaseInsensitiveDict for headers (72 )

Bugfix release to restore prior authentication behavior by reverting SSO profile changes

New features:
* SSO profiles
* Follow redirect support

Other improvements
* Various README updates
* Additional CI scripts

* Update encoding handling in response see https://github.com/okigan/awscurl/pull/92 for details