The dawidd6/action-download-artifact@v3 approach worked, so extend it…

… to the test-linux-aarch64 job.

.github/workflows/build.yml

@@ -167,7 +167,7 @@ jobs:
           COVERALLS_REPO_TOKEN: ${{ github.token }}
         run: |
           binary=test/coveralls-linux-x86_64
-          COVERALLS_SERVICE_NUMBER=${{ github.run_id }}-x86_64-test $binary report --measure --base-path src/coverage_reporter/
+          COVERALLS_SERVICE_NUMBER=x86_64-test-${{ github.run_id }} $binary report --measure --base-path src/coverage_reporter/
 
   test-linux-aarch64:
     runs-on: ubuntu-latest
@@ -191,6 +191,27 @@ jobs:
           sudo apt-get install -y qemu-user
           qemu-aarch64 $binary --version
 
+      - name: Download latest coverage summary
+        uses: dawidd6/action-download-artifact@v3
+        with:
+          github_token: ${{secrets.GITHUB_TOKEN}}
+          workflow: ci.yml
+          name: coverage-summary
+          path: ./test/
+          search_artifacts: true
+          check_artifacts: true
+          if_no_artifact_found: warn
+
+      - name: Display coverage summary
+        run: cat ./test/coverage_summary.txt
+
+      - name: Report coverage with aarch64 binary
+        env:
+          COVERALLS_REPO_TOKEN: ${{ github.token }}
+        run: |
+          binary=test/coveralls-linux-aarch64
+          COVERALLS_SERVICE_NUMBER=aarch64-test-${{ github.run_id }} qemu-aarch64 $binary report --measure --base-path src/coverage_reporter/
+
       # # Download the coverage report generated from ci.yml
       # - name: Download coverage report
       #   uses: actions/download-artifact@v4