[V2] Pass run context to subaction + return in GetRunDetails

[machichima]

Tracking issue

Why are the changes needed?

• Subaction should also get the same run context from its parent.
• To update the Env vars when re-run a task in UI, we need to return env vars through GetRunDetails

What changes were proposed in this pull request?

• Pass run context down to child actions
• Return RunSpec in GetRunDetails API

How was this patch tested?

• Run sandbox and ensure 1) run context appears in subactions; 2) We can see env var in the re-run page

• subaction TaskAction CR:

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• subaction pod:

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• UI re-run page

Labels

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• added: For new features.
• changed: For changes in existing functionality.
• deprecated: For soon-to-be-removed features.
• removed: For features being removed.
• fixed: For any bug fixed.
• security: In case of vulnerabilities

This is important to improve the readability of release notes.

Setup process

Screenshots

Check all the applicable boxes

• I updated the documentation accordingly.
• All new and existing tests passed.
• All commits are signed-off.

Related PRs

Docs link

• main
  • Flyte 2 WIP #6583
    • [V2] Pass run context to subaction + return in GetRunDetails 👈