[booster-release] Update spring-boot-bom.version version with 1.5.14.Beta2 value
[booster-release] Update spring-boot-bom.version version with 1.5.14.Beta2 value

snowdrop/spring-boot-configmap-booster,snowdrop/spring-boot-configmap-booster,snowdrop/spring-boot-configmap-booster