improvement(runners): upgrade runners, remove trigger deploy action (… #6137

Job	Run time
Test and Build / Test and Build	3m 40s
Build AMD64 (./docker/app.Dockerfile, ghcr.io/simstudioai/simstudio, ECR_APP)	7m 47s
Build AMD64 (./docker/realtime.Dockerfile, ghcr.io/simstudioai/realtime, ECR_REALTIME)	3m 37s
Build AMD64 (./docker/db.Dockerfile, ghcr.io/simstudioai/migrations, ECR_MIGRATIONS)	2m 35s
Build ARM64 (GHCR Only)	0s
Process Docs / Process Documentation Embeddings	6m 23s
Create GHCR Manifests	0s
	24m 2s

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