Bump Discord.Net from 3.15.3 to 3.16.0 in the nuget-dependencies group

Bumps the nuget-dependencies group with 1 update: [Discord.Net](https://github.com/discord-net/Discord.Net).


Updates `Discord.Net` from 3.15.3 to 3.16.0
- [Release notes](https://github.com/discord-net/Discord.Net/releases)
- [Changelog](https://github.com/discord-net/Discord.Net/blob/dev/CHANGELOG.md)
- [Commits](discord-net/Discord.Net@3.15.3...3.16.0)

---
updated-dependencies:
- dependency-name: Discord.Net
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: nuget-dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>

DiscordBot/DiscordBot.csproj

@@ -18,7 +18,7 @@
 
     <ItemGroup>
         <PackageReference Include="Discord.Addons.Hosting" Version="6.1.0" />
-        <PackageReference Include="Discord.Net" Version="3.15.3" />
+        <PackageReference Include="Discord.Net" Version="3.16.0" />
         <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.8" />
         <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="8.0.8">
           <PrivateAssets>all</PrivateAssets>