feat(android): Add log flushing on app backgrounding #6212

Job	Run time
system-test (sentry-samples-spring-boot-opentelemetry, true, false)	6m 15s
system-test (sentry-samples-spring-boot-jakarta, false, true)	6m 1s
system-test (sentry-samples-spring-boot-jakarta-opentelemetry, true, false)	6m 50s
system-test (sentry-samples-spring-boot-jakarta-opentelemetry, true, true)	6m 33s
system-test (sentry-samples-spring-boot-opentelemetry, true, true)	6m 22s
system-test (sentry-samples-spring-boot-opentelemetry-noagent, false, true)	6m 6s
system-test (sentry-samples-logback, false, true)	1m 57s
system-test (sentry-samples-spring-boot-webflux, false, true)	3m 43s
system-test (sentry-samples-spring-boot-jakarta-opentelemetry-noagent, false, true)	6m 32s
system-test (sentry-samples-spring-boot-webflux-jakarta, false, true)	3m 41s
system-test (sentry-samples-jul, false, true)	2m 1s
system-test (sentry-samples-console, false, true)	1m 56s
system-test (sentry-samples-spring-boot-4-webflux, false, true)	4m 15s
system-test (sentry-samples-log4j2, false, true)	1m 54s
system-test (sentry-samples-spring-boot, false, true)	3m 47s
system-test (sentry-samples-spring-boot-4-opentelemetry, true, false)	6m 36s
system-test (sentry-samples-spring, false, true)	3m 6s
system-test (sentry-samples-spring-boot-4, false, true)	3m 33s
system-test (sentry-samples-spring-jakarta, false, true)	3m 11s
system-test (sentry-samples-spring-boot-4-opentelemetry, true, true)	6m 48s
system-test (sentry-samples-spring-7, false, true)	3m 26s
	1h 34m 33s

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