Deployment of v19 failed

Postgres has not DATETIME type, so change it to TIMESTAMP

financer-server/src/main/resources/database/postgres/V19_0_1__period.sql

@@ -2,8 +2,8 @@
 CREATE TABLE period (
     id BIGINT NOT NULL PRIMARY KEY GENERATED ALWAYS AS IDENTITY,
     type VARCHAR(255) NOT NULL,
-    start DATETIME NOT NULL,
-    "end" DATETIME
+    start TIMESTAMP NOT NULL,
+    "end" TIMESTAMP
 );
 
 CREATE TABLE link_transaction_period (