Meta: adapt to actions/github-script breaking changes in v5

See #3506

Author: ljharb

.github/workflows/preview.yml

@@ -31,13 +31,13 @@ jobs:
         with:
           script: |
             const { owner, repo } = context.repo;
-            const artifacts = await github.actions.listWorkflowRunArtifacts({
+            const artifacts = await github.actions.rest.listWorkflowRunArtifacts({
                owner,
                repo,
                run_id: ${{ github.event.workflow_run.id }},
             });
             const { id: artifact_id } = artifacts.data.artifacts.find((artifact) => artifact.name == 'out');
-            const download = await github.actions.downloadArtifact({
+            const download = await github.actions.rest.downloadArtifact({
                owner,
                repo,
                artifact_id,