chore: bump besu to 26.7.0

[tropibot]

Automated version bump triggered by release 26.7.0.

Changes

• upstream version (hyperledger/besu) → 26.7.0
• UPSTREAM_VERSION → 26.7.0

[tropibot]

❌ TropiBot report: PROOF OF ATTESTATION TEST REPORT - FAILED

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: QmVV4vDDGjBAg1csYe2k7F2dVR4LAeRwV9Mx9yWm8WnSmh
• Install on DAppNode

📦 Clients Used

Component	DNP Name
Execution	hoodi-besu.dnp.dappnode.eth
Consensus	teku-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	n/a	n/a
Consensus	n/a	n/a

⏱️ Timing

Operation	Duration	Status
SetStakerConfig	54.6s	❌

Total Duration: 54.6s

❌ Error Details

Setup failed: dappmanager set staker config failed: HTTP status server error (500 Internal Server Error) for url (http://my.dappnode:7000/stakerConfigSet)

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📋 View full CI logs

[3alpha]

/proof-of-attestation

[tropibot]

❌ No IPFS hash found for attestation test.

Usage:

• /proof-of-attestation QmHash... — use a specific IPFS hash
• /proof-of-attestation QmHash... prysm — hash + client override
• /proof-of-attestation — auto-detect hash from latest build report

(Auto-detection requires a prior PR build or sync test that posted its TropiBot report with an IPFS hash to this PR.)