[Feature]: Clean up screener code

[ralucapelin]

Library

React Components / v9 (@fluentui/react-components)

Describe the feature that you would like added

• clean up usage of environment variables used by the screener checks code

• clean up configuration files for screener checks to be relevant according to new changes in the CI/CD workflow

Have you discussed this feature with our team

ling1726

Additional context

No response

Validations

• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

[ling1726]

Done in #24739