Release v2.63.0-pre1

What's Changed

• Prevent block inside ResolveAsync from blocking PollingResolver.Refresh by @JamesNK in #2385
• Bump follow-redirects from 1.15.4 to 1.15.6 in /testassets/InteropTestsGrpcWebWebsite/Tests by @dependabot in #2392
• Update microsoft-support.md by @JamesNK in #2403
• fix a couple typos in README.md by @jjanuszkiewicz in #2397
• Interrupt existing subchannel connect attempt when reconnect is requested by @JamesNK in #2410
• Update Directory.Packages.props by @WeihanLi in #2413
• #2401 Add new TFM's so package dependency can be removed by @thompson-tomo in #2402
• support ReadAllAsync for netstandard2.0 by @WeihanLi in #2411
• Fix ObjectDisposedException message by @drewnoakes in #2415
• Enable multiple connections with WinHttpHandler by default by @JamesNK in #2416
• Fix memory leak when using call context propagation with cancellation token by @JamesNK in #2421
• Fix HTTP/3 test errors on .NET 6 by @JamesNK in #2423
• Add semaphore to limit subchannel connect to prevent race conditions by @JamesNK in #2422
• Don't capture async locals in resolver by @JamesNK in #2426
• Update Grpc.Tools to 2.63 by @apolcyn in #2429
• Bump 2.63.x branch to 2.63.0-pre1 by @apolcyn in #2430

New Contributors

• @jjanuszkiewicz made their first contribution in #2397
• @thompson-tomo made their first contribution in #2402
• @drewnoakes made their first contribution in #2415

Full Changelog: v2.62.0...v2.63.0-pre1