chore(deps): bump org.springframework.boot:spring-boot-starter-parent from 3.2.3 to 3.4.3 in /getting-started/android-with-appengine/backend

chore(deps): bump org.springframework.boot:spring-boot-starter-parent from 3.2.3 to 3.4.3 in /getting-started/android-with-appengine/backend #3321