Add action branding

[slifty]

Purple clipboard? Sounds perfect!

[github-actions]

QA Instructions

Summary

This PR adds GitHub Action branding to the action.yml file, setting "clipboard" as the icon and "purple" as the color. This allows the action to be visually branded in the GitHub Actions Marketplace and in workflows with a distinctive icon and color.

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Test Scenarios

1. Verify branding changes in the GitHub Actions Workflow Editor and Marketplace

   • Steps:
     1. Push the updated action to a branch in your repository (use a personal/test repository if necessary).
     2. Create a new workflow file in your repository that uses this action, or update an existing one.

        name: Test QA Instructions Action Branding
        on:
          push:
        jobs:
          test:
            runs-on: ubuntu-latest
            steps:
              - name: Checkout code
                uses: actions/checkout@v3
              - name: Run QA Instructions Action
                uses: <your-repo>/<your-action>@<branch-name>

     3. Commit the workflow file and push the changes.
     4. Open the GitHub Actions tab in your repository.
   • Expected Results:
     • In the workflow editor and Actions tab/job details, the icon displayed next to the action is a "clipboard."
     • The background color of the action is purple.
     • No other unintended visual or functional changes occur.

2. Regression Test: Verify action functionality remains unchanged

   • Steps:
     1. Ensure another repository or workflow is correctly using the action before this change (if uncertain, revert temporarily and test).
     2. Update the action to include the branding changes and use the new version.
     3. Run the workflow and check that it still outputs QA instructions as expected.
   • Expected Results:
     • The action performs identically to its behavior before this PR, successfully generating QA instructions without errors.
     • Any pre-existing functionality remains unaffected.

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Things to Watch For

• Verify that the branding field does not throw an error or warning during the workflow run. Incorrect field names or invalid values may prevent the action from working properly.
• Ensure compatibility across different repositories and branches using this action, as any external changes could impact workflows relying on it.

No additional setup is required for testing. The changes are localized to the action.yml file, so the chances of regressions to other functionality are minimal.

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