Update FileComparator.java

Fix problem with java.lang.Exception: java.sql.SQLFeatureNotSupportedException: ResultSet type 1004 is not supported. on Snowflake database.

src/main/java/uk/co/objectivity/test/db/comparators/FileComparator.java

@@ -99,7 +99,7 @@ public TestResults getTestResults(TestParams testParams, Connection conn, File f
         File diffFileName = getNewFileBasedOnTestConfigFile(testParams.getTestConfigFile(), "_diff.csv");
         try {
             Sql sql = compare.getSqls().get(0);
-            stmt = conn.prepareStatement(sql.getSql(), ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
+            stmt = conn.prepareStatement(sql.getSql(), ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY);
             savedTimes1.startMeasure("Query " + sql.getDatasourceName());
             ResultSet rs = stmt.executeQuery();
             savedTimes1.stopMeasure();