[Bug]: Tooltip in ActionMenu produces SWC warning

### Code of conduct

- [x] I agree to follow this project's code of conduct.

### Impacted component(s)

ActionMenu, Tooltip

### Expected behavior

No warning is logged when using an tooltip inside an action-menu.

### Actual behavior

Currently when I use something like:
```

Your tooltip string is here

Available shapes
Square
Triangle
Parallelogram

```
this produces an SWC warning like:
```
Self managed elements walk up the composed tree to acquire a trigger element. No trigger element was found before the document.

Inspect this issue in the follow element: ​…​​slot

https://opensource.adobe.com/spectrum-web-components/components/tooltip#self-managed-overlays
```

### Screenshots

### What browsers are you seeing the problem in?

Chrome

### How can we reproduce this issue?

1. Go to https://opensource.adobe.com/spectrum-web-components/storybook/index.html?path=/story/action-menu--tooltip-description-and-placement&globals=system:spectrum-two
2. Open dev console
3. Check warning is logged

### Sample code or abstract reproduction which illustrates the problem

_No response_

### Severity

SEV 5

### Logs taken while reproducing problem

_No response_

Start with the ActionMenu tooltip story at the linked Storybook URL and inspect the ActionMenu and Tooltip components involved in that example. Reproduce it in Chrome with the dev console open, then trace the self-managed tooltip warning and verify that the example no longer logs it.

Written by the indexing model from the issue text.