[hotfix]: filter by name of experiment

[anencore94]

Signed-off-by: Jaeyeon Kim anencore94@gmail.com

What this PR does / why we need it:

• To fix sdk's bug which is unavailable to list trials filter by experiment's name.
  • It was broken not from SDK: change list apis to return objects as default #1630. The condition was broken from the first time at Python SDK for katib #1177. It didn't cover the case when name was not given.

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #1919

Checklist:

• Docs included if any changes are user facing

[coveralls]

Coverage remained the same at 72.974% when pulling eb38f2c on anencore94:hotfix/sdk-list-trials-filter into 3b37d93 on kubeflow:master.

[gaocegege]

/lgtm

[google-oss-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: anencore94, gaocegege

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[anencore94]

/retest

[anencore94]

I guess there was some network issue for failed e2e test. How to re-run such github action workflow ? @gaocegege

[gaocegege]

I rerun the test manually.

There is no way to trigger github action with the bot, I think.