New Configuration Schema release candidate

The latest release candidate for the OpenTelemetry Configuration Schema is nearing completion after three years of development, with potential for a stable release soon. This update includes improvements to tooling for consistency, breaking changes like reorganized TLS configuration, and enhanced validation & documentation with descriptive property fields. Contributors will find a streamlined process with consolidated YAML source files and improved generation tooling, while users should be aware of experimental features denoted with specific suffixes.