Proposed changes

This pull request enhances the security of our GitHub Actions workflows by implementing several best practices:

• Pinning Actions to Commit SHAs: All external GitHub Actions are now pinned to specific commit SHAs instead of floating versions (e.g., @v4). This prevents unexpected or malicious code from being executed if a version tag is updated.
• Updated Actions: All actions have been updated to their latest stable versions to include the latest features and security fixes.
• Workflow Cleanup: Minor linter issues have been resolved.

Types of changes

• Polish (an improvement for an existing feature)
• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update (improvements to the project's docs)
• Internal updates (everything related to internal scripts, governance documentation and CI files)

Checklist

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have added the necessary documentation (if appropriate)
• I have added proper type definitions for new commands (if appropriate)

Further comments

Reviewers: @webdriverio/project-committers