build(deps): update achristmascarl/rainfrog to v0.2.16

This MR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [achristmascarl/rainfrog](https://github.com/achristmascarl/rainfrog) | patch | `v0.2.15` -> `v0.2.16` |

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>achristmascarl/rainfrog (achristmascarl/rainfrog)</summary>

### [`v0.2.16`](https://github.com/achristmascarl/rainfrog/releases/tag/v0.2.16)

[Compare Source](achristmascarl/rainfrog@v0.2.15...v0.2.16)

<!-- Release notes generated using configuration in .github/release.yml at v0.2.16 -->

#### What's Changed

-   fix install script compat with older jq versions by [@&#8203;achristmascarl](https://github.com/achristmascarl) in achristmascarl/rainfrog#156
-   Add favorites tab by [@&#8203;joonnna](https://github.com/joonnna) in achristmascarl/rainfrog#157
-   named favorites, refactor focus by [@&#8203;achristmascarl](https://github.com/achristmascarl) in achristmascarl/rainfrog#158

#### New Contributors

-   [@&#8203;joonnna](https://github.com/joonnna) made their first contribution in achristmascarl/rainfrog#157

**Full Changelog**: achristmascarl/rainfrog@v0.2.15...v0.2.16

</details>

---

### Configuration

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

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever MR is behind base branch, or you tick the rebase/retry checkbox.

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

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this MR, check this box

---

This MR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzOS4yMTIuMiIsInVwZGF0ZWRJblZlciI6IjM5LjIxMi4yIiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6WyJSZW5vdmF0ZSBCb3QiXX0=-->

Author: ECG Bot

chezmoi/dot_config/aquaproj-aqua/aqua.yaml

@@ -310,7 +310,7 @@ packages:
 - name: dlvhdr/diffnav@v0.3.0
   description: A git diff pager based on delta but with a file tree, à la GitHub
   link: https://github.com/dlvhdr/diffnav
-- name: achristmascarl/rainfrog@v0.2.15
+- name: achristmascarl/rainfrog@v0.2.16
   description: a database management tui for postgres
   link: https://github.com/achristmascarl/rainfrog
 - name: errata-ai/vale@v3.9.6