feat(android): Add log flushing on app backgrounding #5876

Job	Run time
system-test (sentry-samples-spring-boot-jakarta, false, true)	3m 17s
system-test (sentry-samples-spring-boot-jakarta-opentelemetry-noagent, false, true)	3m 17s
system-test (sentry-samples-spring-boot-opentelemetry-noagent, false, true)	3m 16s
system-test (sentry-samples-spring-boot-webflux, false, true)	3m 11s
system-test (sentry-samples-spring-boot-opentelemetry, true, true)	3m 19s
system-test (sentry-samples-spring-boot-opentelemetry, true, false)	3m 19s
system-test (sentry-samples-spring-boot, false, true)	3m 8s
system-test (sentry-samples-spring-boot-jakarta-opentelemetry, true, true)	3m 16s
system-test (sentry-samples-spring-boot-jakarta-opentelemetry, true, false)	3m 15s
system-test (sentry-samples-logback, false, true)	1m 25s
system-test (sentry-samples-spring-boot-webflux-jakarta, false, true)	3m 15s
system-test (sentry-samples-console, false, true)	1m 31s
system-test (sentry-samples-log4j2, false, true)	1m 23s
system-test (sentry-samples-jul, false, true)	1m 22s
system-test (sentry-samples-spring-boot-4, false, true)	3m 9s
system-test (sentry-samples-spring-boot-4-webflux, false, true)	2m 50s
system-test (sentry-samples-spring, false, true)	2m 16s
system-test (sentry-samples-spring-boot-4-opentelemetry, true, false)	3m 17s
system-test (sentry-samples-spring-boot-4-opentelemetry, true, true)	3m 16s
system-test (sentry-samples-spring-jakarta, false, true)	2m 18s
system-test (sentry-samples-spring-7, false, true)	2m 24s
	57m 44s

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