build(deps): update lusingander/stu to v0.7.6

This MR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [lusingander/stu](https://github.com/lusingander/stu) | patch | `v0.7.5` → `v0.7.6` |

MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot).

**Proposed changes to behavior should be submitted there as MRs.**

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### Release Notes

<details>
<summary>lusingander/stu (lusingander/stu)</summary>

### [`v0.7.6`](https://github.com/lusingander/stu/releases/tag/v0.7.6)

[Compare Source](lusingander/stu@v0.7.5...v0.7.6)

#### What's Changed

- Add default sort config by [@&#8203;lusingander](https://github.com/lusingander) in [#&#8203;88](lusingander/stu#88)
- Update ratatui to 0.30.0 by [@&#8203;lusingander](https://github.com/lusingander) in [#&#8203;90](lusingander/stu#90)
- Add copying text in object preview by [@&#8203;paullj](https://github.com/paullj) in [#&#8203;91](lusingander/stu#91)
- Implement image copy in object preview by [@&#8203;lusingander](https://github.com/lusingander) in [#&#8203;92](lusingander/stu#92)
- Update MSRV to 1.90.0

#### New Contributors

- [@&#8203;paullj](https://github.com/paullj) made their first contribution in [#&#8203;91](lusingander/stu#91)

**Full Changelog**: <lusingander/stu@v0.7.5...v0.7.6>

</details>

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This MR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
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Author: ECG Bot

chezmoi/dot_config/aquaproj-aqua/aqua.yaml

@@ -249,7 +249,7 @@ packages:
 - name: idursun/jjui@v0.9.10
   description: Jujutsu UI (jjui) is a Text User Interface (TUI) designed for interacting with the Jujutsu version control system
   link: https://github.com/idursun/jjui
-- name: lusingander/stu@v0.7.5
+- name: lusingander/stu@v0.7.6
   description: TUI explorer application for Amazon S3 (AWS S3)
   link: https://github.com/lusingander/stu
 - name: brumhard/krewfile@v0.7.0