feat(cli): clone addressbook/datastore merge to dp cli

[graham-chainlink]

In order to remove migration cli command, we need to support database/addressbook merge on the dp cli side since the ci uses the merge command to merge datastore and address book in the workflow

[changeset-bot]

🦋 Changeset detected

Latest commit: cce7042

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
chainlink-deployments-framework	Minor

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[Copilot]

Pull Request Overview

This PR adds address book and datastore merge/migrate commands to the durable pipeline CLI to support the removal of the migration CLI command. The CI workflow currently uses these merge commands to combine datastore and address book artifacts.

Key Changes:

• Added two new command groups (address-book and datastore) under the durable-pipeline command
• Implemented merge operations for both address book and datastore, plus a migrate operation for address book
• Added comprehensive test coverage for command structure and metadata

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

File	Description
engine/cld/legacy/cli/commands/durable-pipelines.go	Implements three new commands: address-book merge/migrate and datastore merge with their respective flags and RunE handlers
engine/cld/legacy/cli/commands/durable-pipelines_test.go	Adds tests validating command structure, subcommand presence, and metadata (Use, Short, Long, Example, flags)
.changeset/orange-planets-sing.md	Changeset file documenting this as a minor feature addition

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[cl-sonarqube-production]

Quality Gate passed

Issues
0 New issues
0 Fixed issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarQube

[bytesizedroll]

I'm purposefully leaving this for the end, we need to change a bunch of workflows for this as well and I'd like to do that in one shot.