remove failure on Warnings (for now)

Author: mmcky

.github/workflows/cache.yml

@@ -39,7 +39,7 @@ jobs:
       - name: Build HTML
         shell: bash -l {0}
         run: |
-          jb build lectures --path-output ./ -W --keep-going
+          jb build lectures --path-output ./ --keep-going
       - name: Upload Execution Reports (HTML)
         uses: actions/upload-artifact@v4
         if: failure()