ci: align staking test workflows with TropiBot retries

[3alpha]

Summary

• Forward an immutable `head_sha` to the reusable staking workflows so TropiBot retries always retest the exact PR head.
• Keep the existing `ipfs_hash` opt-in (skip build when supplied) for manual reruns of the PR head.
• Preserve the reth execution client default and the consensus-client choice for sync / attestation tests.

Details

`sync-test.yml`

• Forwards `head_sha: ${{ github.event.client_payload.head_sha || github.event.pull_request.head.sha || github.sha }}`.
• Existing `pull_request`, `workflow_dispatch`, and `repository_dispatch: [tropibot-sync-test]` triggers preserved.
• `ipfs_hash` is optional and falls back to building the PR head when empty.

`attestation-test.yml`

• Forwards `head_sha: ${{ github.event.client_payload.head_sha || github.sha }}` (command/manual-only triggers).
• Supports `workflow_dispatch` and `repository_dispatch: [tropibot-attestation-test]`.
• `ipfs_hash` is optional and falls back to building the PR head when empty.

Dependency

Depends on the corresponding `dappnode/workflows` reusable-workflow update being merged first.

[tropibot]

✅ TropiBot report: 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.

📦 Package Under Test

• IPFS Hash: QmSXvonWjE2dXd8DmAHoc4zwmo1H9bHPVpzqxZa2YK2G7x
• Install on DAppNode

📦 Clients Used

Component	DNP Name
Execution	hoodi-reth.dnp.dappnode.eth
Consensus	nimbus-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	reth/v2.0.0-eb4c15e/x86_64-unknown-linux-gnu	reth/v2.3.0-9384bc5/x86_64-unknown-linux-gnu
Consensus	n/a	Nimbus/v25.9.2-9839f1-stateofus

⏱️ Timing

Operation	Duration	Status
SetStakerConfig	1m 43s	✅
PackageInstall	1m 4s	✅
WaitForSync	0.0s	✅

Total Duration: 3m 17s

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