Fix bool_pk expected data to use boolean values

Author: gpalanisamyYopp

v2/sourcedb-to-spanner/src/test/java/com/google/cloud/teleport/v2/templates/MySQLDataTypesIT.java

@@ -277,7 +277,7 @@ private Map<String, List<Map<String, Object>>> getExpectedData() {
             "2005-01-01T00:01:54.123456000Z",
             "2037-12-30T23:59:59Z",
             "2038-01-18T23:59:59Z"));
-    expectedData.put("bool_pk", createRows("bool_pk", "FALSE", "TRUE"));
+    expectedData.put("bool_pk", createRows("bool_pk", false, true));
     expectedData.put("year_pk", createRows("year_pk", "1901", "2000"));
     return expectedData;
   }