chore: bump managed zccache 1.12.8 -> 1.12.9, version 2.2.30 -> 2.2.31

[zackees]

Summary

Bumps fbuild's pinned zccache release to 1.12.9 (Windows daemon unstick fix from zccache#775 + the v2 IPC scaffolding from zccache#778–#781). Bumps fbuild's own version 2.2.30 -> 2.2.31 so the autonomous-release action ships a wheel that resolves the new managed download.

What ships

• crates/fbuild-build/src/managed_zccache.rs — MANAGED_ZCCACHE_VERSION and RELEASE_TAG 1.12.8 -> 1.12.9
• crates/fbuild-daemon/src/models.rs — DaemonInfoResponse test-fixture strings updated in lockstep
• Cargo.toml, pyproject.toml, Cargo.lock — workspace + Python version 2.2.30 -> 2.2.31

Coordination

Coordinated with zackees/zccache#783 (already merged + published — 1.12.9 is live on PyPI + crates.io + GitHub Releases). fbuild's managed-zccache downloader will resolve the new tag immediately on next run.

Test plan

• zccache 1.12.9 published on PyPI + crates.io + GitHub Releases before this PR opened (verified via gh run view 27854992359 --repo zackees/zccache → all green)
• fbuild CI on this PR is green
• After merge: release-auto.yml detects the version bump, builds wheels, ships fbuild 2.2.31 to PyPI

🤖 Generated with Claude Code

Summary by CodeRabbit

• Chores
  • Released version 2.2.31
  • Updated a build dependency to its latest patch version

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: e5abcd5d-fc21-47dd-9546-2054738a1d3d

📥 Commits

Reviewing files that changed from the base of the PR and between ac187a5 and 284638b.

⛔ Files ignored due to path filters (1)

• Cargo.lock is excluded by !**/*.lock

📒 Files selected for processing (4)

• Cargo.toml
• crates/fbuild-build/src/managed_zccache.rs
• crates/fbuild-daemon/src/models.rs
• pyproject.toml

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📝 Walkthrough

Walkthrough

Bumps the workspace package version from 2.2.30 to 2.2.31 in both Cargo.toml and pyproject.toml. Updates the pinned managed zccache version constant from 1.12.8 to 1.12.9 in managed_zccache.rs, along with the matching release tag, and updates the corresponding test fixture lockfile name.

Changes

Version Bump and zccache Pin Update

Layer / File(s)	Summary
zccache version pin and test fixture crates/fbuild-build/src/managed_zccache.rs, crates/fbuild-daemon/src/models.rs	MANAGED_ZCCACHE_VERSION and RELEASE_TAG updated from 1.12.8 to 1.12.9; DaemonInfoResponse test fixture updated to use the new version string and lockfile name (.zccache-1.12.9.install.lock).
Package version bump to 2.2.31 Cargo.toml, pyproject.toml	[workspace.package] version and [project] version incremented from 2.2.30 to 2.2.31.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related PRs

• FastLED/fbuild#535: Same release-chore pattern bumping Cargo.toml and pyproject.toml version fields in tandem.
• FastLED/fbuild#575: Directly modifies the same MANAGED_ZCCACHE_VERSION and RELEASE_TAG constants in managed_zccache.rs.
• FastLED/fbuild#579: Updates the same managed_zccache.rs version/tag constants to point the installer at a different pinned zccache release.

Poem

🐇 Hop, hop, a tiny version leap,
From .30 to .31 — oh what a feat!
The zccache bumped from eight to nine,
New lockfiles named, everything's fine.
A rabbit stamps the release with glee! 🎉

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main changes: bumping managed zccache from 1.12.8 to 1.12.9 and fbuild version from 2.2.30 to 2.2.31, matching the primary objectives of the PR.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/bump-managed-zccache-1.12.9

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