fix: Update playwright.yml (#642)

Adds a debug line for length, to see if we are receiving anything from the script.

Author: willum070

.github/workflows/playwright.yml

@@ -120,6 +120,7 @@ jobs:
       - name: Debug Affected Workspaces Output
         run: |
           echo "Affected workspaces: ${{ steps.get_workspaces.outputs.affected_workspaces }}"
+          echo "Affected workspaces (length): ${{ steps.get_workspaces.outputs.affected_workspaces.length }}"
 
       - name: Run All Playwright Tests
         if: steps.get_workspaces.outputs.affected_workspaces != ''