adding iceerg properties

Author: davidrabinowitz

spark-bigquery-parent/pom.xml

@@ -64,6 +64,8 @@
         <google-truth.version>1.4.4</google-truth.version>
         <grpc.version>1.71.0</grpc.version>
         <guava.version>33.4.0-jre</guava.version>
+        <iceberg.version>1.6.1</iceberg.version>
+        <iceberg-bigquery-catalog.version>1.0.0</iceberg-bigquery-catalog.version>
         <jackson.version>2.18.3</jackson.version>
         <netty.version>4.1.119.Final</netty.version>
         <openlineage-spark.version>1.27.0</openlineage-spark.version>