Release v2.67.0-pre1

What's Changed

• precompile condition clean by @Varorbc in #2528
• Log server cancellation errors at info level by @JamesNK in #2527
• Update logging to use generated logs by @wabalubdub in #2531
• Bump serve-static from 1.14.2 to 1.16.2 in /examples/Spar/Server/ClientApp by @dependabot in #2536
• Update to Grpc.Tools 2.67.0-pre1 by @JamesNK in #2547
• Cleanup gRPC unit testing helpers in tester sample by @JamesNK in #2548
• Fix UpdateBalancingState not called when address attributes are modified by @JamesNK in #2553
• Update Grpc.Tools to 2.67.0 by @JamesNK in #2554
• Bump version for 2.67 RC by @apolcyn in #2555

New Contributors

• @wabalubdub made their first contribution in #2531

Full Changelog: v2.66.0...v2.67.0-pre1