Update macro fetch code for new API

[chennes]

Since the API for the catalog fetch code changed, the macro code needs to be updated as well, since it uses the same clone method.

[github-actions]

Successfully created backport PR for main:

• [Backport main] Update macro fetch code for new API #335

[Copilot]

Pull request overview

Updates the AddonManager macro tooling to remain compatible with a changed catalog/git fetch API by adjusting how repository cloning/updating is invoked and improving a macro fetch warning message.

Changes:

• Update macro cache creation to call CacheWriter.clone_or_update(...) as an instance method (matching the updated API).
• Improve the warning message when macro code cannot be fetched from the wiki by including the macro name.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
addonmanager_macro.py	Enhances the “unable to fetch macro code” warning to include the macro name.
MacroCacheCreator.py	Updates git macro retrieval to use a CacheWriter instance for clone_or_update.

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