1.21.1

What's Changed

• Update docs version to 1.21.0 (#10193) @github-actions
• Update testcontainers version to 1.21.0 (#10194) @github-actions

🚀 Features & Enhancements

• Expose Loki in LgtmContainer (#10256) @jaydeluca
• Add support to pull model for DockerModelRunnerContainer (#10253) @eddumelendez

🐛 Bug Fixes

• Use generic init script filename when copying it into a Cassandra container (#9606) @maximevw

📖 Documentation

• Add support to clickhouse JDBC V2 (#10280) @thiagohora
• Fix register listener for kafka docs (#10268) @julianladisch

📦 Dependency updates

• Update checkstyle version to 10.23.0 (#10196) @eddumelendez