4.0.0 org.springframework.boot spring-boot-starter-parent 3.3.5 mk.finki room-reservation-backend 1.0.0 room-reservation-backend Room Reservation System backend 21 org.springframework.security spring-security-crypto org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-jdbc org.springframework.boot spring-boot-starter-validation org.postgresql postgresql runtime org.springframework.boot spring-boot-starter-test test room-reservation-backend org.springframework.boot spring-boot-maven-plugin