Use store to cache step jobs summary

[ahmedhamidawan]

No need to fetch it over and over if an invocation is terminal.

Can you open a separate PR for this please ?

Originally posted by @mvdbeek in #20624 (comment)

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• This is a refactoring of components with existing test coverage.
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[ahmedhamidawan]

Please let me know if I should target a different branch. Seemed like a good fix against 24.2 to me.

[mvdbeek]

I see I have successfully caused a lot of confusion. This is a nice optimization, but nothing we need to backport at all since it doesn't affect users in a direct way (you may get hit by rate limits, but the client handles that). dev would be fine here.