build(deps): update watchexec/watchexec to v2.5.1

This MR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [watchexec/watchexec](https://github.com/watchexec/watchexec) | patch | `v2.5.0` → `v2.5.1` |

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>watchexec/watchexec (watchexec/watchexec)</summary>

### [`v2.5.1`](https://github.com/watchexec/watchexec/releases/tag/v2.5.1): CLI v2.5.1

[Compare Source](watchexec/watchexec@v2.5.0...v2.5.1)

No changes, but two new builds:

- RISC-V (RV64GC)
- FreeBSD (x86-64)

The website has also been refreshed, it's a lot easier to figure out which file to download there: <https://watchexec.github.io/downloads/watchexec/2.5.1/>.

</details>

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### Configuration

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Author: ECG Bot

chezmoi/dot_config/aquaproj-aqua/aqua.yaml

@@ -74,7 +74,7 @@ packages:
 - name: cli/[email protected]
   description: GitHub’s official command line tool
   link: https://github.com/cli/cli
-- name: watchexec/[email protected].0
+- name: watchexec/[email protected].1
   description: Executes commands in response to file modifications
   link: https://github.com/watchexec/watchexec
 - name: iann0036/[email protected]