Release v1.45.0

Backend Changes

Bug fixes, Minor Improvements

• Add HTTP post port mapping to docker command (@albertteoh in #4407)
• Simplify ES config and factory (@yurishkuro in #4396)
• Add otlp-grpc for tracegen's trace-exporter (@boysusu in #4374)
• Allow follows-from reference as a parent span id (@kubarydz in #4382)
• Expose drop span hook as an option in Collector SpanProcessor (@ChenX1993 in #4387)

UI Changes

• UI pinned to version 1.29.1.