feat(function): custom sandboxes #24254

Job	Run time
Test and Build / Lint and Test	4m 10s
Test and Build / Build App	4m 42s
Build AMD64	-1s
Detect Desktop Changes	-1s
Check Docs Changes	-1s
Build ARM64 (GHCR Only)	-1s
Detect Version	-1s
Check Desktop Signing Secrets	-1s
Create Desktop Prerelease	-1s
Build Dev ECR	-1s
Deploy Trigger.dev (Dev)	-1s
Publish Desktop Prerelease	0s
Desktop Prerelease Build	0s
Prune Desktop Prereleases	0s
Migrate Dev DB	-9s
Migrate DB	0s
Promote Images	0s
Process Docs	0s
Create GHCR Manifests	0s
Create GitHub Release	0s
Desktop Release	0s
	8m 34s

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