GitHub Script action not pinned to a full-length commit SHA #169

The accessibility-scanner workflow uses actions/github-script@v8 without pinning it to a specific commit SHA. This violates security best practices and causes the pipeline to fail when the Require actions to be pinned to a full-length commit SHA setting is enabled.

Steps to Reproduce

1. Enable Require actions to be pinned to a full-length commit SHA in the repository settings.
2. Run the accessibility-scanner workflow.
3. Observe the failure caused by the unpinned actions/github-script action.

Expected Behavior

The workflow should run successfully with all actions pinned to full-length commit SHAs.

Actual Behavior

The workflow fails because actions/github-script@v8 is not pinned to a commit SHA.