fix failing test

Signed-off-by: tdruez <tdruez@aboutcode.org>

Author: tdruez

product_portfolio/tests/test_views.py

@@ -1377,7 +1377,7 @@ def test_product_portfolio_list_view_compare_button(self):
         url = resolve_url("product_portfolio:product_list")
         response = self.client.get(url)
         expected = """
-        <button id="compare_button" href="/products/compare/" class="btn btn-outline-dark disabled">
+        <button id="compare_button" class="btn btn-outline-dark disabled" data-href="/products/compare/">
           <i class="fa-solid fa-code-compare"></i> Compare
         </button>
         """