Add data-warning prop on button for better snapshot testing (#6040)

src/renderer/components/kube-object-menu/__snapshots__/kube-object-menu.test.tsx.snap

@@ -126,6 +126,7 @@ exports[`kube-object-menu given kube object when removing kube object renders 1`
         <button
           class="Button ok primary"
           data-testid="confirm"
+          data-waiting="false"
           type="button"
         >
           Remove
@@ -256,6 +257,7 @@ exports[`kube-object-menu given kube object when rerendered with different kube
         <button
           class="Button ok primary"
           data-testid="confirm"
+          data-waiting="false"
           type="button"
         >
           Remove
@@ -350,6 +352,7 @@ exports[`kube-object-menu given kube object with namespace when removing kube ob
         <button
           class="Button ok primary"
           data-testid="confirm"
+          data-waiting="false"
           type="button"
         >
           Remove
@@ -444,6 +447,7 @@ exports[`kube-object-menu given kube object without namespace when removing kube
         <button
           class="Button ok primary"
           data-testid="confirm"
+          data-waiting="false"
           type="button"
         >
           Remove