fix: assume plugins may produce outputs.result and outputs.exitCode (Fixes #9966)

[crenshaw-dev]

Fixes #9966

Please do not open a pull request until you have checked ALL of these:

• Create the PR as draft .
• Run make pre-commit -B to fix codegen and lint problems.
• Sign-off your commits (otherwise the DCO check will fail).
• Use a conventional commit message (otherwise the commit message check will fail).
• "Fixes #" is in both the PR title (for release notes) and this description (to automatically link and close the issue).
• Add unit or e2e tests. Say how you tested your changes. If you changed the UI, attach screenshots.
• Github checks are green.
• Once required tests have passed, mark your PR "Ready for review".

If changes were requested, and you've made them, dismiss the review to get it reviewed again.

[crenshaw-dev]

Getting the following error from make pre-commit -B:

k8s.io/apimachinery/pkg/runtime/schema/generated.proto: File not found

I'm gonna ignore that because I'm 99.9% sure I don't need codegen.

[terrytangyuan]

Thanks!