Reuse WaitFor function to ensure DSPA is ready

[diegolovison]

The issue resolved by this Pull Request:

Resolves https://issues.redhat.com/browse/RHOAIENG-10212

Description of your changes:

Support --endpoint-type and refactor the test suite to allow reusing the WaitFor function

Testing instructions

kind: No manual testing required.
rhoai: sh run_robot_test.sh --set-urls-variables true --extra-robot-args '-L DEBUG -i ODS-2632' --skip-oclogin ( it passed )

Checklist

• The commits are squashed in a cohesive manner and have meaningful messages.
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has manually tested the changes and verified that the changes work

[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[hbelmiro]

/lgtm

[openshift-ci]

@diegolovison: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/integration-test-odh-dspo	14d6530	link	true	/test integration-test-odh-dspo

Full PR test history. Your PR dashboard.

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[HumairAK]

nicely done!
/lgtm
/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: HumairAK, jgarciao

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