fix(size-analysis): Do not upload bundles on forks #6404

Job	Run time
system-test (sentry-samples-spring-boot-jakarta-opentelemetry-noagent, false, true)	7m 27s
system-test (sentry-samples-spring-boot-jakarta-opentelemetry, true, false)	7m 53s
system-test (sentry-samples-spring-boot-jakarta-opentelemetry, true, true)	7m 56s
system-test (sentry-samples-spring-boot-webflux-jakarta, false, true)	3m 50s
system-test (sentry-samples-spring-boot-4, false, true)	5m 4s
system-test (sentry-samples-spring-boot-opentelemetry, true, false)	7m 12s
system-test (sentry-samples-logback, false, true)	2m 23s
system-test (sentry-samples-spring-boot-webflux, false, true)	4m 3s
system-test (sentry-samples-console, false, true)	2m 13s
system-test (sentry-samples-spring-boot, false, true)	4m 13s
system-test (sentry-samples-spring-boot-4-opentelemetry, true, true)	8m 18s
system-test (sentry-samples-spring-boot-4-opentelemetry, true, false)	6m 57s
system-test (sentry-samples-spring-boot-4-webflux, false, true)	4m 32s
system-test (sentry-samples-spring-jakarta, false, true)	3m 46s
system-test (sentry-samples-spring-boot-opentelemetry, true, true)	6m 58s
system-test (sentry-samples-spring-boot-opentelemetry-noagent, false, true)	6m 25s
system-test (sentry-samples-jul, false, true)	2m 28s
system-test (sentry-samples-log4j2, false, true)	2m 21s
system-test (sentry-samples-spring, false, true)	4m 24s
system-test (sentry-samples-spring-7, false, true)	3m 58s
system-test (sentry-samples-spring-boot-jakarta, false, true)	7m 16s
	1h 49m 37s

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