Release SDK v1.29.0

What's Changed

• remove IConnectionMigrationFeature on normal close by @terencefan in #2059
• Error log improvements:
  • Throw http response content when 403 by @terencefan in #2046
  • optimize error message when AccessKey is not authorized. by @terencefan in #2064
  • Add isser to generated access token by @terencefan in #2075
  • Throw different 401 error message by @terencefan in #2071
• Improve server status ping sent to start after connection container is ready by @vicancy in #2070
• Upgrade dependency version for vulnerability fix by @vicancy in #2088
• Gracefully offline and close clients when app shutdown by @vicancy in #2086
• Avoid unnecessary API calls: Lazy load temporary AccessKey by @terencefan in #2092
• Lower EndpointOffline to warning by @vicancy in #2096

Full Changelog: v1.28.0...v1.29.0