Bump spring-boot-starter-parent from 2.6.1 to 3.0.0 in /client-demo#77

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dependabot/maven/client-demo/org.springframework.boot-spring-boot-starter-parent-3.0.0joooohnli/delay-callback:dependabot/maven/client-demo/org.springframework.boot-spring-boot-starter-parent-3.0.0Copy head branch name to clipboard