disable validate on migrate

backend/src/main/java/com/petshop/backend/config/FlywayContextInitializer.java

@@ -37,6 +37,7 @@ public class FlywayContextInitializer implements ApplicationContextInitializer<C
                 Flyway flyway = Flyway.configure()
                         .dataSource(url, username, password)
                         .locations(locations)
+                        .validateOnMigrate(false)
                         .load();
                 flyway.repair();
                 flyway.migrate();