fix: update azure-core version to 1.30.0 in requirements.txt

[Saswato-Microsoft]

Purpose

This pull request updates the Azure core library dependency to a newer version in the infra/scripts/fabric/requirements.txt file.

Dependency update:

• Upgraded azure-core from version 1.29.0 to 1.30.0 to ensure compatibility with the latest Azure features and bug fixes.

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]

• Test the code

What to Check

Verify that the following are valid

• ...

Other Information