Build(deps): Bump Microsoft.Extensions.Http.Polly from 7.0.13 to 8.0.0

Bumps [Microsoft.Extensions.Http.Polly](https://github.com/dotnet/aspnetcore) from 7.0.13 to 8.0.0.
- [Release notes](https://github.com/dotnet/aspnetcore/releases)
- [Changelog](https://github.com/dotnet/aspnetcore/blob/main/docs/ReleasePlanning.md)
- [Commits](dotnet/aspnetcore@v7.0.13...v8.0.0)

---
updated-dependencies:
- dependency-name: Microsoft.Extensions.Http.Polly
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

src/Color-Chan.Discord.Core/Color-Chan.Discord.Core.csproj

@@ -11,7 +11,7 @@
     </ItemGroup>
 
     <ItemGroup>
-        <PackageReference Include="Microsoft.Extensions.Http.Polly" Version="7.0.13" />
+        <PackageReference Include="Microsoft.Extensions.Http.Polly" Version="8.0.0" />
     </ItemGroup>
 
     <ItemGroup>