merge queue: embarking unstable (b904956) and [#7787 + #7786] together

[mergify]

❌ This pull request has failed checks. #7786 will be removed from the queue. ❌

Branch unstable (b904956), #7787 and #7786 are embarked together for merge.

This pull request has been created by Mergify to speculatively check the mergeability of #7786.
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=test-suite-success
• check-success=local-testnet-success

Required conditions to stay in the queue:

• #approved-reviews-by >= 1
  • Update spec tests to 1.6.0-alpha.3 #7786
• check-success=license/cla
  • Update spec tests to 1.6.0-alpha.3 #7786
• check-success=target-branch-check
  • Update spec tests to 1.6.0-alpha.3 #7786
• label!=do-not-merge
  • Update spec tests to 1.6.0-alpha.3 #7786

---
checking_base_sha: b9049560748ab65e1807b1491bc87d0ff9b62332
previous_failed_batches: []
pull_requests:
  - number: 7786
...

[cla-assistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you all sign our Contributor License Agreement before we can accept your contribution.
2 out of 3 committers have signed the CLA.

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

[cla-assistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you all sign our Contributor License Agreement before we can accept your contribution.
2 out of 3 committers have signed the CLA.

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