tests: xfail launchpad endpoint test (#602)

Signed-off-by: Callahan Kovacs <callahan.kovacs@canonical.com>
Co-authored-by: Alex Lowe <alex.lowe@canonical.com>

Author: mr-cal

tests/integration/launchpad/test_anonymous_access.py

@@ -1,16 +1,33 @@
 """Tests for anonymous access."""
 
+import datetime
+
 import pytest
 
 from craft_application import launchpad
 
 
-def test_anonymous_login(tmp_path):
+@pytest.mark.parametrize(
+    "root",
+    [
+        pytest.param(
+            "staging",
+            marks=pytest.mark.xfail(
+                # Only xfail until the end of January.
+                datetime.date.today() < datetime.date(2025, 2, 1),
+                strict=False,
+                reason="staging endpoint is offline",
+            ),
+        ),
+        "production",
+    ],
+)
+def test_anonymous_login(tmp_path, root):
     cache_dir = tmp_path / "cache"
     assert not cache_dir.exists()
 
     launchpad.Launchpad.anonymous(
-        "craft-application-integration-tests", root="staging", cache_dir=cache_dir
+        "craft-application-integration-tests", root=root, cache_dir=cache_dir
     )
 
     assert cache_dir.is_dir()