improvement(helm): added more to helm charts, remove instance selecto… #7110

Job	Run time
Detect Version	3s
Test and Build / Test and Build	4m 9s
Check Docs Changes	0s
Build AMD64 (./docker/db.Dockerfile, ghcr.io/simstudioai/migrations, ECR_MIGRATIONS)	2m 10s
Build AMD64 (./docker/realtime.Dockerfile, ghcr.io/simstudioai/realtime, ECR_REALTIME)	2m 34s
Build AMD64 (./docker/app.Dockerfile, ghcr.io/simstudioai/simstudio, ECR_APP)	4m 50s
Build ARM64 (GHCR Only)	0s
Process Docs	-1s
Create GHCR Manifests	-1s
	13m 44s

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