[Bug]: Overlay throws error when self-managed tooltip is removed from action-button

[spdev3000]

Code of conduct

• I agree to follow this project's code of conduct.

Impacted component(s)

Overlay, Tooltip

Expected behavior

When a tooltip with self-managed attribute has been added to an action-button and it's later removed - and the user hovers over that action-button - nothing should happen.

Actual behavior

When a self-managed tooltip is removed from action-button and the user hovers over it later, overlay system throws error:

TypeError: Cannot read properties of null (reading 'dispatchEvent')
    at n.open (https://srv.divriots.com/packd/@spectrum-web-components/action-button/sp-action-button.js,@spectrum-web-components/icon/sp-icon.js,@spectrum-web-components/icons-workflow,@spectrum-web-components/overlay/overlay-trigger.js,@spectrum-web-components/story-decorator/decorator.js,@spectrum-web-components/tooltip/sp-tooltip.js,lit-element,lit-html,lit/decorators.js,tslib:21073:6957)
    at n.open (https://srv.divriots.com/packd/@spectrum-web-components/action-button/sp-action-button.js,@spectrum-web-components/icon/sp-icon.js,@spectrum-web-components/icons-workflow,@spectrum-web-components/overlay/overlay-trigger.js,@spectrum-web-components/story-decorator/decorator.js,@spectrum-web-components/tooltip/sp-tooltip.js,lit-element,lit-html,lit/decorators.js,tslib:21073:6416)
    at openOverlay (https://srv.divriots.com/packd/@spectrum-web-components/action-button/sp-action-button.js,@spectrum-web-components/icon/sp-icon.js,@spectrum-web-components/icons-workflow,@spectrum-web-components/overlay/overlay-trigger.js,@spectrum-web-components/story-decorator/decorator.js,@spectrum-web-components/tooltip/sp-tooltip.js,lit-element,lit-html,lit/decorators.js,tslib:13762:14514)
    ``` 
   This is probably due to the fact, that removing the self-managed tooltip doesn't refresh/remove the related overlay functionality.
   This doesn't happen with wrapped action-button and tooltip inside `<overlay-trigger>` parent element as `slot="trigger"` and `slot="hover-content"` 

### Screenshots

_No response_

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

_No response_

### How can we reproduce this issue?

1. Go to https://studio.webcomponents.dev/edit/l0KvlnBLi53rKAFXgqMn/src/index.ts?p=stories
2. Wait 3 secs
3. Hover over first (left) action-button
4. Check console
5. See error


### Sample code that illustrates the problem

https://studio.webcomponents.dev/edit/l0KvlnBLi53rKAFXgqMn/src/index.ts?p=stories

### Logs taken while reproducing problem

_No response_

[Westbrook]

Confirmed as corrected in the new Overlay API.