fix(envvars): restore workflowUserId fallback for scheduled execution… #13494

Job	Run time
Detect Version	4s
Test and Build / Test and Build	41s
Check Docs Changes	-1s
Build AMD64 (./docker/db.Dockerfile, ghcr.io/simstudioai/migrations, ECR_MIGRATIONS)	1m 37s
Build AMD64 (./docker/app.Dockerfile, ghcr.io/simstudioai/simstudio, ECR_APP)	5m 15s
Build AMD64 (./docker/realtime.Dockerfile, ghcr.io/simstudioai/realtime, ECR_REALTIME)	2m 6s
Build ARM64 (GHCR Only)	-1s
Process Docs	0s
Create GHCR Manifests	0s
Create GitHub Release	0s
	9m 41s

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