feat(broadcast): add LinkedIn footer social icon (#5295) #20399

Job	Run time
Detect Version	4s
Test and Build / Test and Build	5m 58s
Check Docs Changes	0s
Migrate Dev DB	-8s
Build Dev ECR	-1s
Build ARM64 (GHCR Only)	-1s
Migrate DB / Apply Database Migrations	52s
Build AMD64 (./docker/db.Dockerfile, ghcr.io/simstudioai/migrations, ECR_MIGRATIONS)	59s
Build AMD64 (./docker/pii.Dockerfile, ghcr.io/simstudioai/pii, ECR_PII)	28s
Build AMD64 (./docker/realtime.Dockerfile, ghcr.io/simstudioai/realtime, ECR_REALTIME)	52s
Build AMD64 (./docker/app.Dockerfile, ghcr.io/simstudioai/simstudio, ECR_APP)	3m 6s
Create GHCR Manifests	-1s
Create GitHub Release	0s
Process Docs	-1s
	12m 7s

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