feat(profiles): Add an optional client SDK field for Sample V2 format #14812

Job	Run time
Lint	2m 57s
Setup build metadata	1s
Lint Rust Default Features	2m 17s
Test (macos-latest)	2m 30s
Test All Features (ubuntu-latest)	3m 53s
Integration Tests	13m 26s
Test (windows-latest)	6m 27s
Test Python	58s
Build Relay Binary (relay, x86_64-unknown-linux-gnu)	9m 36s
Build Docker Image (relay)	59s
Sentry-Relay Integration Tests	11m 26s
Publish Relay to DockerHub	0s
Upload build artifacts to gocd	0s
Publish Relay to GCR	0s
self-hosted-end-to-end	13m 31s
	1h 8m 1s

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