Handle `NoOpScopes` in `Context` when starting a span through OpenTelemetry #5682

Job	Run time
system-test (sentry-samples-spring-boot, false, true)	2m 2s
system-test (sentry-samples-spring-boot-webflux, false, true)	2m 13s
system-test (sentry-samples-console, false, true)	48s
system-test (sentry-samples-spring-boot-jakarta, false, true)	4m 12s
system-test (sentry-samples-spring-boot-jakarta-opentelemetry-noagent, false, true)	4m 27s
system-test (sentry-samples-jul, false, true)	55s
system-test (sentry-samples-spring-boot-opentelemetry, true, true)	4m 30s
system-test (sentry-samples-spring-boot-webflux-jakarta, false, true)	2m 5s
system-test (sentry-samples-logback, false, true)	47s
system-test (sentry-samples-spring-boot-jakarta-opentelemetry, true, false)	4m 53s
system-test (sentry-samples-spring-boot-opentelemetry, true, false)	4m 35s
system-test (sentry-samples-spring-boot-4-opentelemetry, true, true)	4m 52s
system-test (sentry-samples-spring-boot-4, false, true)	2m 13s
system-test (sentry-samples-spring-boot-opentelemetry-noagent, false, true)	4m 21s
system-test (sentry-samples-spring-boot-4-webflux, false, true)	2m 32s
system-test (sentry-samples-spring-boot-jakarta-opentelemetry, true, true)	4m 51s
system-test (sentry-samples-spring, false, true)	1m 37s
system-test (sentry-samples-spring-jakarta, false, true)	1m 37s
system-test (sentry-samples-spring-7, false, true)	1m 45s
system-test (sentry-samples-log4j2, false, true)	1m 0s
system-test (sentry-samples-spring-boot-4-opentelemetry, true, false)	4m 48s
	1h 1m 3s

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