Release 1.33.0 Checklist

[MrAlias]

• Complete milestones
  • https://github.com/open-telemetry/opentelemetry-go/milestone/66
  • https://github.com/open-telemetry/opentelemetry-go-contrib/milestone/27
• Update contrib codebase to support changes about to be released (use a git sha version)
• Pre-release
  • Release v1.33.0 #6035
• Tag
• Release
• Check examples
  • Requires [chore] Update go.opentelemetry.io/contrib packages in example/dice/instrumented opentelemetry-go-contrib#6439
• Sync with Contrib
• Release contrib
• Sync website docs
• Close the milestone