Nightly build for Linux (whl) got broken?

[futurwasfree]

Checklist

• I have searched for similar issues.
• For Python issues, I have tested with the latest development wheel.
• I have checked the release documentation and the latest documentation (for main branch).

Steps to reproduce the issue

Linux builds went missing here:
https://github.com/isl-org/Open3D/releases/tag/main-devel
mac and win still available. Recent regression?

Error message

Linux builds went missing here:
https://github.com/isl-org/Open3D/releases/tag/main-devel
mac and win still available. Recent regression?

Open3D, Python and System information

- Operating system: Ubuntu 20.04 / macOS 10.15 / Windows 10 64-bit
- Python version: Python 3.8 / output from `import sys; print(sys.version)`
- Open3D version: output from python: `print(open3d.__version__)`
- System architecture: x86 / arm64 / apple-silicon / jetson / rpi
- Is this a remote workstation?: yes or no
- How did you install Open3D?: pip / conda / build from source
- Compiler version (if built from source): gcc 7.5 / clang 7.0

Additional information

No response