feat(profiles): Add an optional client SDK field for Sample V2 format #14772

Job	Run time
Lint	3m 19s
Lint Rust Default Features	1m 18s
Setup build metadata	1s
Test (macos-latest)	2m 37s
Test All Features (ubuntu-latest)	3m 57s
Test (windows-latest)	4m 55s
Integration Tests	13m 17s
Test Python	1m 17s
Build Relay Binary (relay, x86_64-unknown-linux-gnu)	7m 45s
Build Docker Image (relay)	43s
Sentry-Relay Integration Tests	12m 8s
Publish Relay to DockerHub	0s
self-hosted-end-to-end	13m 49s
Publish Relay to GCR	0s
Upload build artifacts to gocd	0s
	1h 5m 6s

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