feat(ci): include addon wheel bundles in release pipeline

[rachmlenig]

Description

When a new version is released, addon wheel bundles (tts, stt, onnxruntime, etc.) are not built and attached to the release. This means lf addons install tts returns a 404 for any released version.

Current Behavior

• Addon wheels were built once as a test release (v0.0.1+feat.addons) via test-addon-branch.yml
• The CLI looks for wheels on the release matching the installed CLI version (e.g., v0.0.27)
• No wheels exist on v0.0.27 → 404

Expected Behavior

The release workflow should automatically build and attach addon wheel bundles for all supported platforms as part of each release.

Workaround

LF_ADDON_RELEASE_TAG="v0.0.1+feat.addons" lf addons install tts

Context

• The build tooling exists: tools/build_addon_wheels.py and test-addon-branch.yml
• Just needs to be integrated into the main release workflow
• Related: bug(cli): addons install fails for released CLI — registry not found #788 (CLI can't find addon registry for installed binary)

[rachmlenig]

Related: #769 — TTS wheel bundle for linux-x86_64 exceeds GitHub's 2GB asset limit due to PyTorch CUDA wheels. That issue proposes build-time filtering to keep bundles small. Both need to be addressed for addon installs to work reliably across platforms.