[CI] add nix check to CI

[dkijania]

Explain your changes:
Based on recent failure in nix caused by libp2p update we need nix build verification on Pull request. After quick analysis it looks like it is simplest not to use buildkite but github action.

Explain how you tested your changes:
Observed job in CI

Checklist:

• Dependency versions are unchanged
  • Notify Velocity team if dependencies must change in CI
• Modified the current draft of release notes with details on what is completed or incomplete within this project
• Document code purpose, how to use it
  • Mention expected invariants, implicit constraints
• Tests were added for the new behavior
  • Document test purpose, significance of failures
  • Test names should reflect their purpose
• All tests pass (CI will check this if you didn't)
• Serialized types are in stable-versioned modules
• Does this close issues? List them

• Closes #0000

[dkijania]

!ci-build-me

[dkijania]

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[dkijania]

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[dkijania]

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[dkijania]

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[Sventimir]

How are changes to batch_txn_tool related to Nix?

Apart from the above it looks good to me. Changes accidentally breking Nix in the past were so annoying. It's great that we're taking steps to avoid it in the future!

[dkijania]

Apologies for not stating that in description. Compilation failures in batch_txn_tool causes nix build mina to fail. I think we didn't noticed that as we using more nix develop mina and then dune build .... rather than previous command

[Sventimir]

Apologies for not stating that in description. Compilation failures in batch_txn_tool causes nix build mina to fail. I think we didn't noticed that as we using more nix develop mina and then dune build .... rather than previous command

That's what I thought, but wanted to make sure. Thanks!

[dkijania]

!ci-build-me

[dkijania]

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[dkijania]

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[dkijania]

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[dkijania]

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[dkijania]

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[deepthiskumar]

!approved-for-mainnet