Add print columns for Spark Connect

[nabuskey]

Purpose of this PR

This adds two additional print columns: state and podname. Adding them should make it easier for end users to figure out what is happening to the spark connect server.

k get sparkconn
NAME            AGE   STATUS     PODNAME
spark-connect   59s   NotReady   spark-connect-server

Proposed changes:

• adds two additional print columns: state and podname
• <Change 2>
• <Change 3>

Change Category

• Bugfix (non-breaking change which fixes an issue)
• Feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that could affect existing functionality)
• Documentation update

Rationale

Checklist

• I have conducted a self-review of my own code.
• I have updated documentation accordingly.
• I have added tests that prove my changes are effective or that my feature works.
• Existing unit tests pass locally with my changes.

Additional Notes

[vara-bonthu]

/lgtm

[ChenYi015]

/approve

[google-oss-prow]

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