public Builder withTarget(List<String> target) {
      this.target = target;
      return this;
    }
migrate a v1 table to mixed-format table. will reuse file in v1 table , but delete metadata in
session catalog
amoro-format-mixed/amoro-mixed-spark/v3.5/amoro-mixed-spark-3.5/src/main/java/org/apache/amoro/spark/command/MigrateToMixedFormatCommand.java