✅(e2e) fix e2e test to more reliably select test IdP

The list of IdPs on the RENATER test federation seems to have
grown enough that the test IdP we want is no longer displayed
by default, so we have to search for it.

src/satosa/tests/test_e2e.py

@@ -20,6 +20,7 @@ def renater_test_idp(page, login):
 
 def renater_wayf(page):
     page.get_by_text("Veuillez sélectionner").click()
+    page.get_by_role("searchbox").fill("GIP RENATER - IdP de test")
     page.get_by_role("option", name="GIP RENATER - IdP de test", exact=True).click()
     page.get_by_role("button", name="Sélection").click()