opentelemetry-instrumentation-openai-v2 2.2b0

• Fix service tier attribute names: use GEN_AI_OPENAI_REQUEST_SERVICE_TIER for request attributes and GEN_AI_OPENAI_RESPONSE_SERVICE_TIER for response attributes. (#3920)
• Added support for OpenAI embeddings instrumentation (#3461)
• Record prompt and completion events regardless of span sampling decision. (#3226)
• Filter out attributes with the value of NotGiven instances (#3760)
• Migrate off the deprecated events API to use the logs API (#3625)