fix(deps): update dependency red-discordbot to v3.5.18 (#73)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [red-discordbot](https://github.com/Cog-Creators/Red-DiscordBot) ([changelog](https://docs.discord.red/en/stable/changelog.html)) | project.dependencies | patch | `==3.5.17` -> `==3.5.18` |

---

### Release Notes

<details>
<summary>Cog-Creators/Red-DiscordBot (red-discordbot)</summary>

### [`v3.5.18`](https://github.com/Cog-Creators/Red-DiscordBot/blob/HEAD/CHANGES.rst#Redbot-3518-2025-03-26)

[Compare Source](https://github.com/Cog-Creators/Red-DiscordBot/compare/3.5.17...3.5.18)

\==========================

| Thanks to all these amazing people that contributed to this release:
| :ghuser:`Jackenmen`, :ghuser:`Kreusada`

## Read before updating

\#. Information for Audio users that are using an external Lavalink instance (if you don't know what that is, you should skip this point):

    We've updated our default application.yml file and you should update your instance's ``application.yml`` accordingly.
    More specifically, we bumped the version of YT source plugin.
    `Download Red 3.5.18's default application.yml file <https://github.com/Cog-Creators/Red-DiscordBot/releases/download/3.5.18/Red-DiscordBot-3.5.18-default-lavalink-application.yml>`__

## End-user changelog

Changes

***

-   **Core - Dependencies** - Red's dependencies have been bumped (:issue:`6543`)

Fixes

***

-   |cool| **Cogs - Audio** - Fixed recent YT playback issues (:issue:`6542`)

***

</details>

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Reviewed-on: #73
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pyproject.toml

@@ -17,7 +17,7 @@ dependencies = [
   "pip==25.0.1",
   "py-dactyl",
   "pydantic==2.10.6",
-  "red-discordbot==3.5.17",
+  "red-discordbot==3.5.18",
   "watchdog==6.0.0",
   "websockets==14.2",
 ]