build(deps): update sachaos/todoist to v0.21.0

This MR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [sachaos/todoist](https://github.com/sachaos/todoist) | minor | `v0.20.0` -> `v0.21.0` |

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.**

---

### Release Notes

<details>
<summary>sachaos/todoist (sachaos/todoist)</summary>

### [`v0.21.0`](https://github.com/sachaos/todoist/releases/tag/v0.21.0)

[Compare Source](sachaos/todoist@v0.20.0...v0.21.0)

#### What's Changed

-   docs(readme.md): updated readme to use repo-contained images Issue [#&#8203;230](sachaos/todoist#230) by [@&#8203;HacDan](https://github.com/HacDan) in sachaos/todoist#235
-   Added check for project color non-existant by [@&#8203;HacDan](https://github.com/HacDan) in sachaos/todoist#245
-   Fix "add --project-name" and check for exactly one positional argument by [@&#8203;mgsloan](https://github.com/mgsloan) in sachaos/todoist#253
-   Fix README brew install command for Todoist CLI to avoid cask-formula conflict by [@&#8203;katticot-ledger](https://github.com/katticot-ledger) in sachaos/todoist#262
-   Enable to release by CI by [@&#8203;sachaos](https://github.com/sachaos) in sachaos/todoist#263

#### New Contributors

-   [@&#8203;mgsloan](https://github.com/mgsloan) made their first contribution in sachaos/todoist#253
-   [@&#8203;katticot-ledger](https://github.com/katticot-ledger) made their first contribution in sachaos/todoist#262

**Full Changelog**: sachaos/todoist@v0.20.0...v0.21.0

</details>

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chezmoi/dot_config/aquaproj-aqua/aqua.yaml

@@ -79,7 +79,7 @@ packages:
 - name: bensadeh/[email protected]
   description: A log file highlighter
   link: https://github.com/bensadeh/tailspin
-- name: sachaos/todoist@v0.20.0
+- name: sachaos/todoist@v0.21.0
   description: Todoist CLI Client. I love Todoist and CLI
   link: https://github.com/sachaos/todoist
 - name: bitwarden/[email protected]