Release v2.61.0-pre1

What's Changed

• Update Grpc.Tools to 2.60.0 by @JamesNK in #2336
• Bump dev version to 2.61.0-dev on master branch by @stanley-cheung in #2337
• Fix cancellation token reported when using retries by @JamesNK in #2345
• First pass at Grpc.StatusProto API by @tonydnewell in #2205
• Add ProtoStatus example by @JamesNK in #2273
• Grpc.StatusProto clean up by @JamesNK in #2349
• Bump follow-redirects from 1.15.3 to 1.15.4 in /testassets/InteropTestsGrpcWebWebsite/Tests by @dependabot in #2352
• Add key services tests for service and interceptor by @JamesNK in #2356
• Allow GrpcChannel to use WinHttpHandler on Windows Server 2019 by @JamesNK in #2362
• Add .NET 9 NuGet feed by @JamesNK in #2365
• Add missing package mapping for net9 feed by @JamesNK in #2366
• proposal: Build changelog based on previous stable version by @tomkerkhove in #2269
• Bump Grpc.Tools to 1.61.0 by @apolcyn in #2370
• Bump versions on v2.61.x by @apolcyn in #2371

New Contributors

• @tonydnewell made their first contribution in #2205
• @tomkerkhove made their first contribution in #2269

Full Changelog: v2.60.0...v2.61.0-pre1