docs: clarify navigation by adding step to enter 'infra' directory before 'scripts'

[Harmanpreet-Microsoft]

Added a step to navigate to the 'infra' directory before accessing the 'scripts' folder.

Purpose

This pull request makes a minor update to the documentation, clarifying the correct navigation steps for running quota check scripts.

• In docs/quota_check.md, added a step to change into the infra directory before entering the scripts folder, improving instructions for locating and executing the script.
• ...

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

[github-actions]

🎉 This PR is included in version 2.2.0 🎉

The release is available on GitHub release

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