workflows: stop using github-script for download (#933)

This patch changes the way build_url artifact is downloaded when running
test-pr workflow. The workflow is triggered by build on PR submission.
It downloads the build_url file from the triggering workflow. In case
triggering workflow contains more than 30 artifacts the download may
fail. This is caused by pagination in github REST API. This patch
removes use of github-script. Instead it uses
dawidd6/action-download-artifact action which allows to download
artifacts from triggering workflow. Using the action has additional
benefit of removin "unzip" step.

Author: ricardosalveti

.github/workflows/test-pr.yml

@@ -22,35 +22,15 @@ jobs:
       url: ${{ steps.set-build-url.outputs.url }}
     steps:
       - name: 'Download build URL'
-        uses: actions/github-script@v6
+        id: download-artifact
+        uses: actions/download-artifact@v4
         with:
-          script: |
-            let allArtifacts = await github.rest.actions.listWorkflowRunArtifacts({
-               owner: context.repo.owner,
-               repo: context.repo.repo,
-               run_id: context.payload.workflow_run.id,
-            });
-            let matchArtifact = allArtifacts.data.artifacts.filter((artifact) => {
-              return artifact.name == "build_url"
-            })[0];
-            let download = await github.rest.actions.downloadArtifact({
-               owner: context.repo.owner,
-               repo: context.repo.repo,
-               artifact_id: matchArtifact.id,
-               archive_format: 'zip',
-            });
-            const fs = require('fs');
-            const path = require('path');
-            const temp = '${{ runner.temp }}/artifacts';
-            if (!fs.existsSync(temp)){
-              fs.mkdirSync(temp);
-            }
-            fs.writeFileSync(path.join(temp, 'build_url.zip'), Buffer.from(download.data));
-
+          run-id: ${{ github.event.workflow_run.id }}
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          name: build_url
       - name: 'Setup build URL'
         id: set-build-url
         run: |
-          unzip "${{ runner.temp }}/artifacts/build_url.zip"
           BUILD_URL=$(cat build_url)
           echo "Build URL: ${BUILD_URL}"
           echo "url=${BUILD_URL}" >> $GITHUB_OUTPUT