Mark the keyfromlabel&enginepkcs11 tests as xfail

The tests currently fail on debian:bookworm due to a bug in OpenSSL
3.0.13.

bin/tests/system/enginepkcs11/tests_sh_enginepkcs11.py

@@ -9,6 +9,9 @@
 # See the COPYRIGHT file distributed with this work for additional
 # information regarding copyright ownership.
 
+import pytest
 
+
+@pytest.mark.xfail(reason="openssl bug causes failure on bookworm [GL #4814]")
 def test_enginepkcs11(run_tests_sh):
     run_tests_sh()

bin/tests/system/keyfromlabel/tests_sh_keyfromlabel.py

@@ -9,6 +9,9 @@
 # See the COPYRIGHT file distributed with this work for additional
 # information regarding copyright ownership.
 
+import pytest
 
+
+@pytest.mark.xfail(reason="openssl bug causes failure on bookworm [GL #4814]")
 def test_keyfromlabel(run_tests_sh):
     run_tests_sh()