fix(profiles): Fix unsampled profiles being dropped in processing Relays #13925

Job	Run time
Lint	2m 56s
Lint Rust Default Features	2m 6s
Setup build metadata	1s
Test (macos-latest)	2m 48s
Test (windows-latest)	7m 3s
Test All Features (ubuntu-latest)	3m 50s
Integration Tests	18m 28s
Test Python	1m 19s
Build Relay Binary (relay, x86_64-unknown-linux-gnu)	6m 42s
Build Docker Image (relay)	40s
Sentry-Relay Integration Tests	15m 35s
Publish Relay to DockerHub	0s
Upload build artifacts to gocd	0s
Publish Relay to GCR	0s
self-hosted-end-to-end	13m 55s
	1h 15m 23s

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