build(deps): Bump Discord.Net in /FFXIVDiscordChatBridge

Bumps [Discord.Net](https://github.com/discord-net/Discord.Net) from 3.15.1 to 3.15.2.
- [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@3.15.1...3.15.2)

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

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

FFXIVDiscordChatBridge/FFXIVDiscordChatBridge.csproj

@@ -12,7 +12,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-      <PackageReference Include="Discord.Net" Version="3.15.1" />
+      <PackageReference Include="Discord.Net" Version="3.15.2" />
       <PackageReference Include="InputSimulator" Version="1.0.4" />
       <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0" />
       <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.0" />

FFXIVHelpers/FFXIVHelpers.csproj

@@ -8,7 +8,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="Discord.Net" Version="3.15.1" />
+        <PackageReference Include="Discord.Net" Version="3.15.2" />
         <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0" />
         <PackageReference Include="Microsoft.Extensions.Logging" Version="8.0.0" />
         <PackageReference Include="NLog" Version="5.3.2" />