update admin tests for tails5-6 migration

admin/tests/test_securedrop-admin-setup.py

@@ -82,8 +82,8 @@ def test_python3_buster_venv_deleted_in_bullseye(self, tmpdir, caplog):
         with mock.patch("bootstrap.is_tails", return_value=True):
             with mock.patch("builtins.open", mock.mock_open(read_data='TAILS_VERSION_ID="5.0"')):
                 bootstrap.clean_up_old_tails_venv(venv_path)
-                assert "Tails 4 virtualenv detected." in caplog.text
-                assert "Tails 4 virtualenv deleted." in caplog.text
+                assert "Tails 5 virtualenv detected." in caplog.text
+                assert "Tails 5 virtualenv deleted." in caplog.text
                 assert not os.path.exists(venv_path)
 
     def test_python3_bullseye_venv_not_deleted_in_bullseye(self, tmpdir, caplog):
@@ -93,7 +93,7 @@ def test_python3_bullseye_venv_not_deleted_in_bullseye(self, tmpdir, caplog):
         with mock.patch("bootstrap.is_tails", return_value=True):
             with mock.patch("subprocess.check_output", return_value="bullseye"):
                 bootstrap.clean_up_old_tails_venv(venv_path)
-                assert "Tails 4 virtualenv detected" not in caplog.text
+                assert "Tails 5 virtualenv detected" not in caplog.text
                 assert os.path.exists(venv_path)
 
     def test_python3_buster_venv_not_deleted_in_buster(self, tmpdir, caplog):