feat(config): Add relay configuration for detecting canary #15004

Job	Run time
Setup build metadata	1s
Lint	3m 5s
Lint Rust Default Features	1m 18s
Test All Features (ubuntu-latest)	3m 45s
Test (macos-latest)	2m 25s
Integration Tests	12m 16s
Test (windows-latest)	5m 34s
Test Python	59s
Build Relay Binary (relay, x86_64-unknown-linux-gnu)	7m 29s
Build Docker Image (relay)	25s
Sentry-Relay Integration Tests	11m 38s
Publish Relay to DockerHub	0s
self-hosted-end-to-end	12m 13s
Upload build artifacts to gocd	0s
Publish Relay to GCR	0s
	1h 1m 8s

Provide feedback