chore(deps): update dependency @stencil/core to v4.12.6 (#29165)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [@stencil/core](https://stenciljs.com/)
([source](https://togithub.com/ionic-team/stencil)) | [`4.12.5` ->
`4.12.6`](https://renovatebot.com/diffs/npm/@stencil%2fcore/4.12.5/4.12.6)
|
[![age](https://developer.mend.io/api/mc/badges/age/npm/@stencil%2fcore/4.12.6?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/@stencil%2fcore/4.12.6?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/@stencil%2fcore/4.12.5/4.12.6?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@stencil%2fcore/4.12.5/4.12.6?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>ionic-team/stencil (@&#8203;stencil/core)</summary>

###
[`v4.12.6`](https://togithub.com/ionic-team/stencil/blob/HEAD/CHANGELOG.md#-4126-2024-03-11)

[Compare
Source](https://togithub.com/ionic-team/stencil/compare/v4.12.5...v4.12.6)

##### Bug Fixes

- **cli:** move version logging earlier in CLI to allow `-v`,
`--version`
([#&#8203;5425](https://togithub.com/ionic-team/stencil/issues/5425))
([194b0fc](https://togithub.com/ionic-team/stencil/commit/194b0fc0d9741d45efbe17f90572fbe09fc5ec62))
- **compiler:** fix generated import statement
([#&#8203;5419](https://togithub.com/ionic-team/stencil/issues/5419))
([502da1b](https://togithub.com/ionic-team/stencil/commit/502da1bc3d1503bd82fbf0cccc312825a82772cf))
- **test:** ensure screenshot dir is cleaned up
([#&#8203;5421](https://togithub.com/ionic-team/stencil/issues/5421))
([15e7a49](https://togithub.com/ionic-team/stencil/commit/15e7a4960bc845212563141b00798fdee07cbfbd))

</details>

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