Update build_and_test.yml

Author: HyukjinKwon

.github/workflows/build_and_test.yml

@@ -694,7 +694,7 @@ jobs:
         SPARK_TPCDS_DATA=`pwd`/tpcds-sf-1 build/sbt "sql/testOnly org.apache.spark.sql.TPCDSQueryTestSuite"
       env:
         SPARK_TPCDS_JOIN_CONF: |
-          spark.sql.autoBroadcastJoinThreshold=1
+          spark.sql.autoBroadcastJoinThreshold=-1
           spark.sql.join.forceApplyShuffledHashJoin=true
     - name: Upload test results to report
       if: always()