chore(ci): migrate to shared reusable workflows

[3alpha]

Summary

• replace custom CI implementations with reusable workflows from dappnode/workflows
• split sync workflows into dedicated test and production workflow files
• simplify release pipeline to call shared staking release workflow
• rename auto check workflow to bump-upstream and remove duplicated logic

Validation

• not run locally (workflow-only change)

[tropibot]

✅ SYNC TEST REPORT - PASSED

This CI runs on a real DAppNode using the same RPC calls a user would make to configure a staker setup: execution client, consensus client, web3signer, MEV-boost, and relays.

📦 Clients Used

Component	DNP Name
Execution	hoodi-erigon.dnp.dappnode.eth
Consensus	prysm-hoodi.dnp.dappnode.eth
Web3Signer	web3signer-hoodi.dnp.dappnode.eth
MEV Boost	mev-boost-hoodi.dnp.dappnode.eth
Network	hoodi

🔖 Version Tracking

Client	Before	After
Execution	erigon/3.2.0/linux-amd64/go1.24.7	erigon/3.4.2/linux-amd64/go1.25.10
Consensus	Prysm/v7.1.2 (linux amd64)	Prysm/v7.1.2 (linux amd64)

⏱️ Timing

Operation	Duration	Status
SetStakerConfig	52.2s	✅
PackageInstall	42.5s	✅
WaitForSync	18.0s	✅

Total Duration: 2m 5s

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