Update dependency textual to ^0.69.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
textual	^0.68 -> ^0.69.0

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Release Notes

Textualize/textual (textual)

### [`v0.69.0`](https://togithub.com/Textualize/textual/blob/HEAD/CHANGELOG.md#0690---2024-06-16) [Compare Source](https://togithub.com/Textualize/textual/compare/v0.68.0...v0.69.0) ##### Added - Added `App.simulate_key` [https://github.com/Textualize/textual/pull/4657](https://togithub.com/Textualize/textual/pull/4657) ##### Fixed - Fixed issue with pop_screen launched from an action [https://github.com/Textualize/textual/pull/4657](https://togithub.com/Textualize/textual/pull/4657) ##### Changed - `App.check_bindings` is now private - `App.action_check_bindings` is now `App.action_simulate_key`

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