Bump spring-boot-starter-test from 2.6.0 to 2.7.4#29

dependabot[bot] wants to merge 1 commit intomasterhmcts-test/testing-client:masterfrom

dependabot/gradle/org.springframework.boot-spring-boot-starter-test-2.7.4hmcts-test/testing-client:dependabot/gradle/org.springframework.boot-spring-boot-starter-test-2.7.4Copy head branch name to clipboard