deps: bump PostgreSQL JDBC to 42.3.4 (#138)
deps: bump PostgreSQL JDBC to 42.3.4 (#138)


GoogleCloudPlatform/pgadapter,GoogleCloudPlatform/pgadapter,GoogleCloudPlatform/pgadapter,GoogleCloudPlatform/pgadapter,GoogleCloudPlatform/pgadapter,GoogleCloudPlatform/pgadapter,GoogleCloudPlatform/pgadapter