chore(vmm): adapt make_vm_config test callers to requirements param

Rebasing onto master pulled in the new
make_vm_config(.., requirements: Option<&Requirements>) parameter added
by the launch-token-requirement work (#763). The multi-NIC bridge/user
config-equality test still called the 5-arg form; pass None for the new
argument so the crate builds against the rebased signature.

Author: Leechael

vmm/src/app.rs

@@ -1747,8 +1747,10 @@ mod tests {
         let image = test_tdx_image(true);
         let compose_hash = hex_of(0x22, 32);
 
-        let bridge_config = make_vm_config(&config, &bridge_manifest, &image, &compose_hash, None)?;
-        let user_config = make_vm_config(&config, &user_manifest, &image, &compose_hash, None)?;
+        let bridge_config =
+            make_vm_config(&config, &bridge_manifest, &image, &compose_hash, None, None)?;
+        let user_config =
+            make_vm_config(&config, &user_manifest, &image, &compose_hash, None, None)?;
 
         assert_eq!(bridge_config, user_config);
         Ok(())