fix: bumping max list artifact to 2k

[functionstackx]

running into use cases where each workflow has more than 1k artifacts that i need to download

[Copilot]

Pull Request Overview

This PR increases the maximum artifact count limit from 1,000 to 2,000 to accommodate workflows with larger numbers of artifacts. The change updates both the limit constant and the corresponding warning message to reflect the new threshold.

Key Changes:

• Doubled the maximum artifact count limit from 1,000 to 2,000
• Updated the warning message to use the dynamic maximumArtifactCount variable instead of a hardcoded value

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[austenstone]

Lgtm. I know this has been tested.

[Link-]

@functionstackx - Instead of making this change, I recommend that you add a helper function to actions/toolkit/packages/artifact/src/internal/shared/config.ts which will read an environment variable let's call it: ACTIONS_ARTIFACT_MAX_ARTIFACT_LIST_COUNT

The default being 1000 if this env var is not set.

This way we make this configurable and avoid causing others to hit their primary rate limits with this change.

[Link-]

The change here is not sufficient alone of course, we'll need to cut a new release for this package, pull it in: https://github.com/actions/download-artifact and also cut a new minor release for that action.

[Link-]

Thank you @functionstackx for your contribution! I left a recommendation for a better approach. Feel free to tag me when you have the changes made.

Also, please make sure to add tests in either:

• actions/toolkit/packages/artifact/__tests__/download-artifact.test.ts
• actions/toolkit/packages/artifact/__tests__/list-artifacts.test.ts

to make sure we cover the changes

[austenstone]

Continuing the work here
#2165