merge queue: embarking unstable (2f37bf4) and #6995 together

[mergify]

🎉 This pull request has been checked successfully and will be merged soon. 🎉

Branch unstable (2f37bf4) and #6995 are embarked together for merge.

This pull request has been created by Mergify to speculatively check the mergeability of #6995.
You don't need to do anything. Mergify will close this pull request automatically when it is complete.

Required conditions of queue default for merge:

• check-success=local-testnet-success
• check-success=test-suite-success

Required conditions to stay in the queue:

• #approved-reviews-by >= 1
  • Some updates to Lighthouse book #6995
• check-success=license/cla
  • Some updates to Lighthouse book #6995
• check-success=target-branch-check
  • Some updates to Lighthouse book #6995
• label!=do-not-merge
  • Some updates to Lighthouse book #6995

---
previous_failed_batches: []
pull_requests:
  - number: 6995
...

[CLAassistant]

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1 out of 2 committers have signed the CLA.

✅ chong-he
❌ mergify[bot]
_{You have signed the CLA already but the status is still pending? Let us recheck it.}