test(perf): add secret_free to test_memory_overhead

Increasing Secret Freedom test coverage.

Signed-off-by: Nikita Kalyazin <[email protected]>

Author: kalyazin

tests/integration_tests/performance/test_memory_overhead.py

@@ -37,6 +37,7 @@ def test_memory_overhead(
     mem_size_mib,
     pci_enabled,
     metrics,
+    secret_free,
 ):
     """Track Firecracker memory overhead.
 
@@ -48,7 +49,11 @@ def test_memory_overhead(
             guest_kernel_acpi, rootfs, pci=pci_enabled, monitor_memory=False
         )
         microvm.spawn(emit_metrics=True)
-        microvm.basic_config(vcpu_count=vcpu_count, mem_size_mib=mem_size_mib)
+        microvm.basic_config(
+            vcpu_count=vcpu_count,
+            mem_size_mib=mem_size_mib,
+            secret_free=secret_free,
+        )
         microvm.add_net_iface()
         microvm.start()
         metrics.set_dimensions(