Make block e2e compatible with main branch + Fix bugs

[prankulmahajan]

• Update ginkgo version to 2.17.2
• Fix issues in baseutils due to the updated k8s packages
• Fix issue where unable to create ROKS cluster when latest version is selected
• Give msg to slack in case cluster creation fails
• Update README

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Updates in jenkins config:

• Updated kubectl to 1.29
• Updated ginkgo to match 2.17.2
• Fix issue where jenkins job show success even if there are cluster creation issues.
• Fix issue where cluster deletion isn't triggered if ginkgo tests fails
• Catch SIGTERM signal i.e a jenkins job is terminated manually, it will trigger a cleanup of cluster first before existing
• Update timeout from 120 to 180 min. (Currently 120 min there is a case when cluster deletion is skipped)
• Fix issue where region other that us-south was allowed to enter when stage env was selected.

[prankulmahajan]

Negative tests done:

• Created IKS 1.30 prod cluster with image: nginx -> Expected jenkins job to fail as tests wont be able to pull public image. Also ensure cluster is deleted
• Security group pending issue -> Not able to replicate
• If given wrong version of IKS/ROKS, jenkins job should be marked as Failed

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Positive tests done:

• IKS 1.30
• ROKS 4.15

[sameshai]

LGTM