feat: add dst

[matusfaro]

Summary

Description: DataSpray is an open-source platform for streaming data and security monitoring. The dst CLI tool is used for managing stream processor code used by the streaming platform. It allows creating boilerplate code, building, testing and deploying to the DataSpray platform.

Let me know if you need more details!

• Tool repo URL: https://github.com/datasprayio/dataspray
• Plugin repo URL: https://github.com/datasprayio/asdf-dst

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