feat: DH-21466: Bump deephaven-csv reference to 0.19.0 (#7617)

Author: kosak

gradle/libs.versions.toml

@@ -22,7 +22,7 @@ confluent = "8.1.1"
 confluent-kafka-clients = "8.1.1-ccs"
 dagger = "2.56.2"
 deephaven-barrage = "1.0.0"
-deephaven-csv = "0.18.0"
+deephaven-csv = "0.19.0"
 deephaven-hash = "0.5.0"
 deephaven-suan-shu = "0.1.1"
 dev-dirs = "26"