fix: replace calicoctl plugin with its upstream

[danudey]

Summary

Description: Replace the currently provided calicoctl plugin with the upstream repository it was forked from. The currently used repository does not currently work, but the upstream repository works as expected.

• Tool repo URL: https://github.com/projectcalico/calico/
• Plugin repo URL: https://github.com/teejaded/asdf-calicoctl

Checklist

• Format with scripts/format.bash
• Test locally with scripts/test_plugin.bash --file plugins/<your_new_plugin_name>
• Your plugin CI tests are green
  • Tip: use the plugin_test action from asdf-actions in your plugin CI

[jthegedus]

There is also another version of this plugin at

https://github.com/FairwindsOps/asdf-calicoctl

Which we actually link to in the README.

I will update all references to this latest addition.

[jthegedus]

Thanks.