Ray-2.9.3

This patch release contains fixes for Ray Core, Ray Data, and Ray Serve.

Ray Core

🔨 Fixes:

• Fix protobuf breaking change by adding a compat layer. (#43172)
• Bump up task failure logs to warnings to make sure failures could be troubleshooted (#43147)
• Fix placement group leaks (#42942)

Ray Data

🔨 Fixes:

• Skip schema call in to_tf if tf.TypeSpec is provided (#42917)
• Skip recording memory spilled stats when get_memory_info_reply is failed (#42824)

Ray Serve

🔨 Fixes:

• Fixing DeploymentStateManager qualifying replicas as running prematurely (#43075)

Thanks

Many thanks to all those who contributed to this release!

@rynewang, @GeneDer, @alexeykudinkin, @edoakes, @c21, @rkooo567