Update spring-test re: deprecated queryForInt()

Now invoking JdbcTemplate's queryForObject() method instead
of the deprecated queryForInt() method within the test suite.

Issue: SPR-10257

spring-test/src/test/java/org/springframework/test/context/junit4/spr9051/AbstractTransactionalAnnotatedConfigClassTests.java

@@ -76,7 +76,7 @@ public abstract class AbstractTransactionalAnnotatedConfigClassTests {
 	}
 
 	private int countRowsInTable(String tableName) {
-		return jdbcTemplate.queryForInt("SELECT COUNT(0) FROM " + tableName);
+		return jdbcTemplate.queryForObject("SELECT COUNT(0) FROM " + tableName, Integer.class);
 	}
 
 	private int createPerson(String name) {