fix: Version mismatch in integration tests.

Author: pratickchokhani

it/google-cloud-platform/src/main/java/org/apache/beam/it/gcp/JDBCBaseIT.java

@@ -57,8 +57,8 @@ public abstract class JDBCBaseIT extends TemplateTestBase {
   // NOTE: These versions must correspond to the versions declared in the `it/pom.xml` file.
   private static final String MYSQL_VERSION = "8.0.30";
   private static final String POSTGRES_VERSION = "42.6.1";
-  private static final String ORACLE_VERSION = "23.2.0.0";
-  private static final String MSSQL_VERSION = "12.2.0.jre11";
+  private static final String ORACLE_VERSION = "23.9.0.25.07";
+  private static final String MSSQL_VERSION = "13.2.1.jre11";
 
   @Before
   public void setUpJDBC() throws IOException {

v2/datastream-to-spanner/src/test/java/com/google/cloud/teleport/v2/templates/loadtesting/DataStreamToSpannerLTBase.java

@@ -164,6 +164,7 @@ public void runLoadTest(
             put("dlqGcsPubSubSubscription", dlqSubscription.toString());
             put("datastreamSourceType", "mysql");
             put("inputFileFormat", "avro");
+            put("workerMachineType", "n2-standard-4");
           }
         };