CI: Fix artifacts folder structure and name

It will now contain `bin/` as topmost folder, and both release and debug
artifacts are uploaded (separately for now).

Would be nice to change the release process eventually to include all
platforms and targets in a single zip.

.github/workflows/builds.yml

@@ -104,23 +104,22 @@ jobs:
         uses: actions/upload-artifact@v3
         with:
           name: ${{ github.event.repository.name }}
-          path: |
-            ${{ github.workspace }}/bin/*
+          path: 'bin/'
 
       - name: Archive Release
+        if: success() && github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
         uses: thedoctor0/zip-release@0.7.1
         with:
           type: 'zip'
-          filename: '${{ env.LIBNAME }}.${{ matrix.platform }}.${{ matrix.arch }}.zip'
-          path: '${{ github.workspace }}/bin/'
-        if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
+          filename: '${{ env.LIBNAME }}.${{ matrix.platform }}.${{ matrix.target }}.${{ matrix.arch }}.zip'
+          path: 'bin/'
 
       - name: Create and upload asset
         if: success() && github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
         uses: ncipollo/release-action@v1
         with:
           allowUpdates: true
-          artifacts: "${{ env.LIBNAME }}.${{ matrix.platform }}.${{ matrix.arch }}.zip"
+          artifacts: "${{ env.LIBNAME }}.${{ matrix.platform }}.${{ matrix.target }}.${{ matrix.arch }}.zip"
           omitNameDuringUpdate: true
           omitBodyDuringUpdate: true
           token: ${{ secrets.GITHUB_TOKEN }}