Upload build not just on releases

[rotu]

Upload built plugin. This is to ease testing of unreleased plugins.
The intent is to make this available for other proto plugins, but you gotta start somewhere.

[rotu]

Related to: moonrepo/proto#296 (comment)
Ideally, this can be consumable directly from proto with something like `plugins.python = "source:https://github.com/rotu/moonrepo-python-plugin/suites/18399993921/artifacts/1066037821".

alternatives:

• upload as artifact
  • 👎 Artifact links like https://github.com/rotu/moonrepo-python-plugin/suites/18399993921/artifacts/1066037821 returns 307 Temporary Redirect.
  • 👎 Artifacts are always compressed in zip, so there is no direct link to the wasm
• check the wasm into git (optionally with git LFS)
  • 👍 This fits the node convention of attaching a dist folder to the repo
  • 👎 This fits the node convention of high-churn files checked in to source and requires either hooks or rewriting history to ensure consistency.
• create a release on push (esp. a prerelease)
  • 👍 This provides a direct link to the artifact