ScyllaDB release: version 1.3.1

ScyllaDB 1.3.1, released by the ScyllaDB team, is a bugfix update to the ScyllaDB 1.3 stable branch, maintaining backward compatibility and supporting rolling upgrades. Key issues addressed in this release include fixing crashes caused by reading large columns or from slow disks, resolving network setup problems affecting performance on servers with fewer than eight v-cores, and correcting UUID generation problems that impacted compatibility with certain drivers. Other fixes include addressing service startup order issues on server boot, resolving Thrift query discrepancies that affected Presto and Spark users, and improving task estimation accuracy in compaction management. The release also introduces several enhancements and cleanup operations, such as improving Docker image descriptions, updating submodules, and refining configuration scripts for better network and service handling.