fix: Filter the paths to run the pipeline

[Prekshith-Microsoft]

This pull request updates several GitHub Actions workflow files to add path filters, ensuring that workflows only run when relevant files are changed. This helps reduce unnecessary CI/CD runs and improves efficiency.

Workflow trigger improvements:

• Updated .github/workflows/build-docker-images.yml to trigger only when source code, Docker-related files, or workflow configuration files are changed, excluding test code.
• Updated .github/workflows/tests.yml to trigger only when code, configuration, or test-related files are changed.
• Updated .github/workflows/ci.yml to trigger only when infrastructure, scripts, or core configuration files are changed.
• Updated .github/workflows/broken-links-checker.yml to trigger only when Markdown files or its own workflow file are changed.## Purpose

• ...

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