tests: Bluetooth: Shell: Add bluetooth.shell.audio.no_assert

Add a test case that disables asserts to ensure that the
BT shell with audio can be built without compiler
warnings/errors when asserts are disabled.

Signed-off-by: Emil Gydesen <[email protected]>

Author: Thalley

tests/bluetooth/shell/testcase.yaml

@@ -445,3 +445,9 @@ tests:
     extra_configs:
       - CONFIG_BT_CCP_CALL_CONTROL_SERVER=n
     tags: bluetooth
+  bluetooth.shell.audio.no_assert:
+    extra_args: CONF_FILE="audio.conf"
+    build_only: true
+    extra_configs:
+      - CONFIG_ASSERT=n
+    tags: bluetooth