Bump Microsoft.Extensions.ObjectPool from 3.1.9 to 5.0.0
Bump Microsoft.Extensions.ObjectPool from 3.1.9 to 5.0.0

Bumps [Microsoft.Extensions.ObjectPool](https://github.com/dotnet/aspnetcore) from 3.1.9 to 5.0.0.
- [Release notes](https://github.com/dotnet/aspnetcore/releases)
- [Commits](https://github.com/dotnet/aspnetcore/compare/v3.1.9...v5.0.0)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
ppy/osu-framework,ZLima12/osu-framework,peppy/osu-framework,ZLima12/osu-framework,smoogipooo/osu-framework,ppy/osu-framework,peppy/osu-framework,smoogipooo/osu-framework,peppy/osu-framework,ppy/osu-framework