[SNC-387] In policy decide, compile config only when context is config

[sagar-connect]

Jira: SNC-387

Checklist

=========

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have checked for similar issues and haven't found anything relevant.
• This is not a security issue (which should be reported here: https://circleci.com/security/)
• I have read Contribution Guidelines.

Internal Checklist

• I am requesting a review from my own team as well as the owning team
• I have a plan in place for the monitoring of the changes that I am making (this can include new monitors, logs to be aware of, etc...)

Changes

=======

• In policy decide, compile config only when context is config
• Also, remove the requirement of owner-id for compilation

Rationale

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The policy feature could be used non CircleCI-config related areas as well in the future.
But, the compilation is relevant to circleci configs only.

Considerations

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It was understood that ownerid is not needed policy compilation, so that check is also removed.

Screenshots

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Before

Image or [gif](https://giphy.com/apps/giphycapture)

After

Image or gif where change can be clearly seen

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