ORC: Upgrade ORC dependency to 1.6.9 (#2781)

Author: kbendick

versions.props

@@ -5,7 +5,7 @@ org.apache.flink:* = 1.12.1
 org.apache.hadoop:* = 2.7.3
 org.apache.hive:hive-metastore = 2.3.8
 org.apache.hive:hive-serde = 2.3.8
-org.apache.orc:* = 1.6.8
+org.apache.orc:* = 1.6.9
 org.apache.parquet:* = 1.12.0
 org.apache.spark:spark-hive_2.11 = 2.4.8
 org.apache.spark:spark-avro_2.11 = 2.4.8