fix: quota unavailability for handling in quotacheck pipeline

[NirajC-Microsoft]

Purpose

This pull request introduces a minor update to the quota checking logic in scripts/checkquota.sh. The change ensures that the INSUFFICIENT_QUOTA flag is set when no quota information is found for a model, improving error handling in the script.

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Does this introduce a breaking change?

• Yes
• No

How to Test

• Get the code

git clone [repo-address]
cd [repo-name]
git checkout [branch-name]
npm install

• Test the code

What to Check

Verify that the following are valid

• ...

Other Information