Publishing script should fail when Maven upload requests fail

[Alibehram11]

Hi,

I noticed that the Maven publishing script currently prints an error message when a PUT request fails, but it does not exit with a non-zero status code.

For example, if uploading the .zip, .sha256, or .md5 file fails, the script only does:

print(f"Error: {response.status_code} - {response.content.decode()}")

Because of this, CI/CD workflows may still treat the publish step as successful even though one or more artifacts were not actually uploaded.

Suggested improvement:

• Track whether any upload failed
• Exit with a non-zero status code if any request fails
• Optionally skip checksum uploads if the main .zip upload fails
• Consider accepting other successful status codes such as 204
• Add a request timeout to avoid hanging indefinitely

Example behavior:

if response_zip.status_code not in (200, 201, 204):
    print(...)
    exit(1)

This would make failures easier to detect in automated release workflows and prevent partially published artifacts from being treated as successful.

Thanks!