Release 1.38.0

Bug fixes, Minor Improvements

• fix: jaeger-agent sampling endpoint returns backwards incompatible JSON (@vprithvi in #3897)
• fix: streaming span writer is not working in grpc based remote storage plugin (@arajkumar in #3887)
• Fix race condition when adding collector tags (@yurishkuro in #3886)
• Change build info date to commit timestamp (@TripleDogDare in #3876)
• Add 🚗 (@yurishkuro in 55a8ca9)
• Add AdditionalDialOptions to ConnBuilder (@vprithvi in #3865)
• Add sample docker-compose configuration using Kafka (@yurishkuro in 7006e9f)