Bump org.springframework.cloud.fn:spring-functions-catalog-bom from 5.0.2-SNAPSHOT to 5.0.3-SNAPSHOT in /samples/time-spel-log

Bump org.springframework.cloud.fn:spring-functions-catalog-bom from 5.0.2-SNAPSHOT to 5.0.3-SNAPSHOT in /samples/time-spel-log #124