ci(release): test and package five native platforms in one workflow

scripts/package-release.py

@@ -0,0 +1,21 @@
+#!/usr/bin/env python3
+"""Package the already-tested native executable and licenses for a release."""
+
+from pathlib import Path
+import sys
+import tarfile
+import zipfile
+
+system, arch = sys.argv[1:]
+version = Path('VERSION').read_text().strip()
+name = f'rawmark_{version}_{system}_{arch}'
+package = Path('package')
+files = sorted(p for p in package.rglob('*') if p.is_file())
+if system == 'windows':
+    with zipfile.ZipFile(f'downloads/{name}.zip', 'w', compression=zipfile.ZIP_DEFLATED) as archive:
+        for file in files:
+            archive.write(file, file.relative_to(package).as_posix())
+else:
+    with tarfile.open(f'downloads/{name}.tar.gz', 'w:gz') as archive:
+        for file in files:
+            archive.add(file, arcname=file.relative_to(package).as_posix())