Bump spring-boot-starter-parent from 2.0.4.RELEASE to 2.1.5.RELEASE#28

dependabot-preview[bot] wants to merge 1 commit intoChineseVersionReactivePlatform/Spring-In-Action-5:ChineseVersionfrom

dependabot/maven/org.springframework.boot-spring-boot-starter-parent-2.1.5.RELEASEReactivePlatform/Spring-In-Action-5:dependabot/maven/org.springframework.boot-spring-boot-starter-parent-2.1.5.RELEASECopy head branch name to clipboard