Bump NuGet.Frameworks from 4.0.0 to 4.6.4
Bump NuGet.Frameworks from 4.0.0 to 4.6.4

Bumps [NuGet.Frameworks](https://github.com/NuGet/NuGet.Client) from 4.0.0 to 4.6.4.
- [Release notes](https://github.com/NuGet/NuGet.Client/releases)
- [Commits](https://github.com/NuGet/NuGet.Client/commits)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
Particular/NuGetPackager