avro

Bump Microsoft.Build.Framework from 16.8.0 to 17.0.0 in /lang/csharp (#1399)

Bumps [Microsoft.Build.Framework](https://github.com/dotnet/msbuild) from 16.8.0 to 17.0.0.
- [Release notes](https://github.com/dotnet/msbuild/releases)
- [Commits](https://github.com/dotnet/msbuild/commits/v17.0.0)

---
updated-dependencies:
- dependency-name: Microsoft.Build.Framework
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>