HHH-14485 Upgrade integration tests to use Oracle JDBC driver version 21.1

Author: Sanne

databases/oracle/matrix.gradle

@@ -4,4 +4,4 @@
  * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
  * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
  */
-jdbcDependency 'com.oracle.database.jdbc:ojdbc8:19.8.0.0'
+jdbcDependency 'com.oracle.database.jdbc:ojdbc8:21.1.0.0'

gradle/libraries.gradle

@@ -122,7 +122,7 @@ ext {
             mariadb:         'org.mariadb.jdbc:mariadb-java-client:2.2.3',
             cockroachdb:     'org.postgresql:postgresql:42.2.8',
 
-            oracle:          'com.oracle.database.jdbc:ojdbc8:19.8.0.0',
+            oracle:          'com.oracle.database.jdbc:ojdbc8:21.1.0.0',
             mssql:           'com.microsoft.sqlserver:mssql-jdbc:7.2.1.jre8',
             db2:             'com.ibm.db2:db2jcc:10.5',
             hana:            'com.sap.cloud.db.jdbc:ngdbc:2.4.59',