ScyllaDB Open Source Release 2.3.3

ScyllaDB Open Source 2.3.3 is a bugfix release from the ScyllaDB team, maintaining backward compatibility and supporting rolling upgrades, although users are encouraged to upgrade to the latest stable release, 3.0. This release addresses several issues, including a race condition between the "nodetool snapshot" command and running compactions leading to errors, a problem where a bootstrapping node fails to wait for the schema before joining the ring, and an issue with ScyllaDB rejecting certain SSTables created by earlier versions of Cassandra. Additionally, it resolves rare instances where the commit log replay fails and where ScyllaDB unexpectedly exits during service stop.