session-lock-down-no-deny: Don't test it on fixedfunction

As defined in test-cases/apparmor-session-lockdown-no-deny.yaml this test
doesn't apply for fixedfunction images.

Signed-off-by: Frédéric Danis <frederic.danis@collabora.com>

lava/group-apparmor-tpl.yaml

@@ -6,12 +6,14 @@
       namespace: system
       name: apparmor-tests
       definitions:
+        {% if image_type != "fixedfunction" %}
         - repository: https://gitlab.apertis.org/tests/apertis-test-cases.git
           branch: 'apertis/v2023dev1'
           history: False
           from: git
           path: test-cases/apparmor-session-lockdown-no-deny.yaml
           name: apparmor-session-lockdown-no-deny
+        {% endif %}
         - repository: https://gitlab.apertis.org/tests/apertis-test-cases.git
           branch: 'apertis/v2023dev1'
           history: False