fix injection of extra arg

was injected to commands (as previously) but should now
be injected to args with latest gardener changes

Author: AndreasBurger

pkg/webhook/controlplane/ensurer.go

@@ -65,7 +65,7 @@ func (e *ensurer) EnsureMachineControllerManagerDeployment(_ context.Context, _
 	}
 
 	sidecarContainer := machinecontrollermanager.ProviderSidecarContainer(newObj.Namespace, azure.Name, image.String())
-	sidecarContainer.Command = append(sidecarContainer.Command, "--machine-pv-reattach-timeout=150s")
+	sidecarContainer.Args = append(sidecarContainer.Args, "--machine-pv-reattach-timeout=150s")
 
 	newObj.Spec.Template.Spec.Containers = extensionswebhook.EnsureContainerWithName(newObj.Spec.Template.Spec.Containers, sidecarContainer)
 	return nil

pkg/webhook/controlplane/ensurer_test.go

@@ -514,7 +514,7 @@ var _ = Describe("Ensurer", func() {
 			Expect(deployment.Spec.Template.Spec.Containers).To(BeEmpty())
 			Expect(ensurer.EnsureMachineControllerManagerDeployment(context.TODO(), nil, deployment, nil)).To(BeNil())
 			expectedContainer := machinecontrollermanager.ProviderSidecarContainer(deployment.Namespace, "provider-azure", "foo:bar")
-			expectedContainer.Command = append(expectedContainer.Command, "--machine-pv-reattach-timeout=150s")
+			expectedContainer.Args = append(expectedContainer.Args, "--machine-pv-reattach-timeout=150s")
 			Expect(deployment.Spec.Template.Spec.Containers).To(ConsistOf(expectedContainer))
 		})
 	})