Release dmq-node-0.7.0.0

[coot]

List of changes

• Use ouroboros-consensus-4.0.0.0, ouroboros-network-1.2.0.0
• Support GHC-9.14
• Updated changelog

Checklist

• related issue
• My changes generate no new warnings
• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have added tests that prove my fix is effective or that my feature works

[Copilot]

Pull request overview

This PR prepares the dmq-node package for the 0.7.0.0 release by updating dependency constraints/pins for newer Ouroboros/GHC tooling, and by consolidating release notes into the main changelog.

Changes:

• Updated Nix flake inputs (CHaP + hackage.nix) to newer revisions.
• Adjusted Cabal dependency bounds (incl. ouroboros-consensus / ouroboros-network) and added a GHC 9.14-specific allow-newer set.
• Updated dmq-node changelog for 0.7.0.0 and removed now-merged scriv fragments.

Reviewed changes

Copilot reviewed 5 out of 6 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
flake.lock	Bumps pinned Nix inputs (CHaP, hackage.nix) used for reproducible builds.
dmq-node/dmq-node.cabal	Updates dependency bounds to align with newer consensus/network and related libraries.
dmq-node/CHANGELOG.md	Finalizes 0.7.0.0 release notes and date in the main changelog.
dmq-node/changelog.d/20260710_092801_coot_prepare_11_1.md	Removes scriv fragment after merging into the main changelog.
dmq-node/changelog.d/20260707_092212_coot_dmq_changes.md	Removes scriv fragment after merging into the main changelog.
cabal.project	Updates index-state pins and adds GHC 9.14 allow-newer exceptions for known upstream issues.

Suppressed comments (2)

dmq-node/CHANGELOG.md:13

• "undecision" looks like a typo/incorrect word choice in the changelog. Consider using "undecided decision" to make the release note clear.

- Using `tx-submission` undecision logic:

dmq-node/CHANGELOG.md:30

• Typo in changelog bullet: "hanshake" should be "handshake".

  - hanshake mini-protocol tracer

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