Weaviate v1.31.19 release: Multi-datacenter support and bug fixes

AI Impact Summary

Weaviate v1.31.19 introduces multi-datacenter support, a significant internal improvement that enhances deployment flexibility and scalability. The bug fixes related to metrics, resource leaks, and stopword filtering contribute to overall system stability and performance. While primarily internal, this release represents a valuable enhancement for Weaviate users seeking improved operational resilience.