fix(deps): update dependency textual to v0.56.3

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
textual	0.56.2 -> 0.56.3

---

Release Notes

Textualize/textual (textual)

### [`v0.56.3`](https://togithub.com/Textualize/textual/blob/HEAD/CHANGELOG.md#0563---2024-04-08) [Compare Source](https://togithub.com/Textualize/textual/compare/v0.56.2...v0.56.3) ##### Fixed - Fixed inline mode not updating [https://github.com/Textualize/textual/issues/4403](https://togithub.com/Textualize/textual/issues/4403)

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• [ ] If you want to rebase/retry this PR, check this box

---

This PR has been generated by Mend Renovate. View repository job log here.