CI: build on go 1.16 to support Apple Silicon

release version 1.0.6-ztk4

bugfix: use proper ssh key path in tunnel subcommand

Version 1.0.6-ztk2

Use GoReleaser for builds and brew

Merge branch 'print-profile'

Version 1.0.6 release

Add support for EC2 Instance Connect

* ability to use ephemeral SSH keys for connecting to EC2 instances
Check this for more details: https://aws.amazon.com/blogs/compute/new-using-amazon-ec2-instance-connect-for-ssh-access-to-your-ec2-instances/

* add new command push-key: helper command that can be executed
for example as a local action in ansible before running playbooks

* add default provider config to `goship configure` for easier
user onboarding

Version 1.0.5 release

Version 1.0.4 release