Bump Discord.Net.Labs from 3.4.7 to 3.4.9

Bumps [Discord.Net.Labs](https://github.com/Discord-Net-Labs/Discord.Net-Labs) from 3.4.7 to 3.4.9.
- [Release notes](https://github.com/Discord-Net-Labs/Discord.Net-Labs/releases)
- [Changelog](https://github.com/Discord-Net-Labs/Discord.Net-Labs/blob/release/3.x/CHANGELOG.md)
- [Commits](Discord-Net-Labs/Discord.Net-Labs@3.4.7...3.4.9)

---
updated-dependencies:
- dependency-name: Discord.Net.Labs
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

TabletBot.Discord/TabletBot.Discord.csproj

@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Discord.Net.Labs" Version="3.4.7" />
+    <PackageReference Include="Discord.Net.Labs" Version="3.4.9" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="6.0.0" />
   </ItemGroup>