net: Widen vm parameter type in VMI condition-wait helpers

wait_for_vmi_condition_status and wait_for_no_vmi_condition only use
vm.vmi which exists on both BaseVirtualMachine and VirtualMachineForTests.
Widen the type to VirtualMachine so any subclass can be passed without
a type error.

Signed-off-by: Asia Khromov <akhromov@redhat.com>
Assisted-by: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: azhivovk

libs/net/vmspec.py

@@ -206,7 +206,7 @@ def wait_for_ifaces_status(
 
 
 def wait_for_vmi_condition_status(
-    vm: BaseVirtualMachine,
+    vm: VirtualMachine,
     condition: str,
     status: str = ResourceConstants.Condition.Status.TRUE,
     timeout: int = 300,
@@ -249,7 +249,7 @@ def wait_for_vmi_condition_status(
 
 
 def wait_for_no_vmi_condition(
-    vm: BaseVirtualMachine,
+    vm: VirtualMachine,
     condition: str,
     timeout: int = 300,
     resource_version: str | None = None,