ci: free ~20GB on GHA runner before docker build

[mabry1985]

Summary

Defensive fix — pip install of the full protoVoice dep set (vllm + torch + nvidia-* CUDA libs + pipecat + kokoro + flashinfer) overflows ubuntu-latest's ~14GB of free disk. v0.12.5 publish and release both failed at:

ERROR: Could not install packages due to an OSError: [Errno 28] No space left on device

within ~3 minutes. The two subsequent PR merges (#3, #4) only succeeded because the buildcache kept the working set small — next time the cache misses (dep bump, buildcache eviction, etc.) it will fail again.

What changed

Adds jlumbroso/free-disk-space@v1.3.1 as the first step in both docker-publish.yml and release.yml. Conservative flags:

Flag	Value	Rationale
tool-cache	false	Keep Python/Node toolchains that other actions use
docker-images	false	Daemon needs them
android	true	~9GB reclaimed
dotnet	true	~1.7GB
haskell	true	~5.2GB
swap-storage	true	~4GB
large-packages	false	Slow to remove, marginal gain

Net ~20GB reclaimed, comfortably above the overflow point.

Test plan

• Merge → docker-publish.yml runs on main → completes without No space left regardless of buildcache state.
• When v0.12.6 tag is cut, release.yml builds on the same reclaimed runner and creates both the semver Docker tags and the GitHub Release.

🤖 Generated with Claude Code

Summary by CodeRabbit

• Chores
  • Enhanced GitHub Actions workflows to improve build reliability by optimizing disk space utilization during the deployment process.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro

Run ID: 01f73056-0510-42a3-b538-0072ecf3f1ac

📥 Commits

Reviewing files that changed from the base of the PR and between ef8e63e and 339ef29.

📒 Files selected for processing (2)

• .github/workflows/docker-publish.yml
• .github/workflows/release.yml

---

Walkthrough

Two GitHub Actions workflow files are updated to include a disk space reclamation step before subsequent build operations. This step uses a free-disk-space action configured with conservative settings to prevent "No space left on device" errors during Docker builds and dependency installation.

Changes

Cohort / File(s)	Summary
GitHub Actions Workflow Disk Space Recovery .github/workflows/docker-publish.yml, .github/workflows/release.yml	Adds a jlumbroso/free-disk-space@v1.3.1 action step before subsequent build steps to reclaim disk space on GitHub Actions runners using conservative settings that preserve tool-cache and Docker images while enabling swap storage.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~5 minutes

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch ci/free-disk-space

---

_{Comment @coderabbitai help to get the list of available commands and usage tips.}