[dev2] increase pool size for crss-registration datasource in invoice-gen

crss-settlement-task-invoice-generation/crss-settlement-task-invoice-generation-dev2.yml

@@ -10,6 +10,7 @@ spring:
       jdbcUrl: jdbc:postgresql://192.168.233.9:5432/crss?currentSchema=registration
       username: crss_registration
       password: crss_registration
+      maximumPoolSize: 5
       driverClassName: org.postgresql.Driver
   crss-dataflow:
     datasource: