Update tests to use default local queue created in given namespace

[abhijeet-dhumal]

Description

Update tests to use default local queue created in given namespace to skip local-queue usage in raycluster configuration function.
Depends on : project-codeflare/codeflare-common#59

How Has This Been Tested?

Skipped providing local-queue parameter in raycluster configuration function to create a raycluster with default kueue label

Merge criteria:

• 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]

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[abhijeet-dhumal]

This change is included in #197