feat(config): Add relay configuration for detecting canary #15006

Job	Run time
Lint	59s
Lint Rust Default Features	1m 2s
Test (macos-latest)	1m 3s
Test All Features (ubuntu-latest)	50s
Test (windows-latest)	47s
Integration Tests	47s
Test Python	1m 0s
Setup build metadata	1s
Build Relay Binary (relay, x86_64-unknown-linux-gnu)	39s
Build Docker Image	1s
Publish Relay to DockerHub	1s
Upload build artifacts to gocd	1s
Publish Relay to GCR	1s
Sentry-Relay Integration Tests	1s
self-hosted-end-to-end	1s
	7m 14s

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