merge queue: embarking unstable (54b3576) and [#8856 + #7684] together

[mergify]

🎉 This combination of pull requests has been checked successfully and will be merged soon. 🎉

Branch unstable (54b3576) and [#8856 + #7684] are embarked together for merge.

This pull request has been created by Mergify to speculatively check the mergeability of [#8856 + #7684].
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
  • Skip payload_invalidation tests prior to Bellatrix #8856
  • Validator manager import to allow overriding fields with CLI flag #7684
• check-success=license/cla
  • Skip payload_invalidation tests prior to Bellatrix #8856
  • Validator manager import to allow overriding fields with CLI flag #7684
• check-success=target-branch-check
  • Skip payload_invalidation tests prior to Bellatrix #8856
  • Validator manager import to allow overriding fields with CLI flag #7684
• label!=do-not-merge
  • Skip payload_invalidation tests prior to Bellatrix #8856
  • Validator manager import to allow overriding fields with CLI flag #7684

---
checking_base_sha: 54b35761452d73147a80665614230dd2b5dc2951
previous_failed_batches: []
pull_requests:
  - number: 8856
  - number: 7684
...

[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.
3 out of 4 committers have signed the CLA.

✅ chong-he
✅ dapplion
✅ michaelsproul
❌ 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.
3 out of 4 committers have signed the CLA.

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