ci: harden opencode update workflow lockfile ordering #446

Job	Run time
Cargo Package Verify	3m 31s
Format Check	15s
Docker Context Guard	3m 24s
Compose File Validate	4s
Bun Ecosystem Checks	7s
Build (macos-latest)	8m 35s
Build (ubuntu-latest)	3m 42s
Marketplace Packer Validate	8s
CLI Parity Tests	15s
E2E Tests	1m 13s
	21m 14s

Provide feedback