Removed the boskos calls from the prow job definition

[Ananya-kumari]

• Removed boskos env variables
• Removed the gingko installation
• Removed the boskos calls
• Modified CLUSTER_NAME details for conformance and e2e-node jobs.

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: Ananya-kumari / name: Ananya Kumari (f4b06f2)

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: Ananya-kumari
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[k8s-ci-robot]

Hi @Ananya-kumari. Thanks for your PR.

I'm waiting for a kubernetes member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[Rajalakshmi-Girish]

/ok-to-test

[Ananya-kumari]

/test pull-test-infra-verify-lint