🛠️ Refactor PR creation to use environment variables

This commit enhances the Pull Request creation process in our GitHub Action:

- 📦 Introduces environment variables `PR_TITLE` and `PR_BODY` to store PR content
- 🔄 Updates the action to use these environment variables instead of direct interpolation
- 🐛 Fixes potential issues with escaping special characters in PR title and body
- 🚀 Improves maintainability and reduces the risk of syntax errors

These changes make our action more robust and easier to maintain. By using environment variables, we ensure that the PR title and body are properly handled, regardless of their content or length. This approach also simplifies debugging and allows for easier modifications in the future.

action.yml

@@ -123,15 +123,18 @@ runs:
     - name: Create or Update Pull Request and Add Reviewers
       id: create_pr
       uses: actions/github-script@v6
+      env:
+        PR_TITLE: ${{ steps.set_release_title.outputs.title }}
+        PR_BODY: ${{ steps.generate_release_notes.outputs.description }}
       with:
         github-token: ${{ inputs.github_token }}
         script: |
           const owner = context.repo.owner;
           const repo = context.repo.repo;
           const head = '${{ inputs.dev_branch }}';
           const base = '${{ steps.get_default_branch.outputs.branch }}';
-          const title = '${{ steps.set_release_title.outputs.title }}';
-          const body = `${{ steps.generate_release_notes.outputs.description }}`;
+          const title = process.env.PR_TITLE;
+          const body = process.env.PR_BODY;
           
           // Check if PR from dev to default branch already exists
           const { data: pulls } = await github.rest.pulls.list({