Update chromium to 152.0.7977.8 (security update)

[bryan-minimal]

Updates chromium-bin + chromium-headless-shell-bin from 151.0.7922.34 to 152.0.7977.8 — a Chromium security update (each Chrome major carries Critical fixes).

Channel context (#646): chromium-bin tracks Playwright's pin, which is pre-stable by design; 152.0.7977.8 is ahead of current Linux stable (151.0.7922.108). CVEs publish only against stable, so a 0/0/0 scan for this package means "ahead of the published feed", not "audited clean".

chromium pins three interlocked identifiers, resolved from three sources:

identifier	value	source
browser_version	152.0.7977.8	Playwright browsers.json
revision	1237	Playwright browsers.json (arm64 legs are Playwright-gated)
snapshot_position	1669021	chromiumdash branch position → nearest available amd64 snapshot

Four artifacts fetched + sha256'd fresh (amd64 chrome-linux.zip + headless-shell.zip from the snapshot bucket; arm64 chromium / headless-shell builds at the Playwright revision). Resolved + rewritten by pkgmgr (gominimal/pkgmgr-rs#515).

🤖 Generated with Claude Code

Summary by CodeRabbit

• Updates
  • Updated the bundled Chromium browser to a newer pre-stable release.
  • Refreshed the headless browser package with the latest matching browser build.
  • Updated platform-specific packages for amd64 and arm64 systems.
  • Refreshed download integrity checks to ensure the updated browser artifacts are validated correctly.
  • Added clearer documentation indicating the pre-stable status of these browser builds.

[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: a7d6078d-7eef-4236-843d-8f417c5d90b1

📥 Commits

Reviewing files that changed from the base of the PR and between eac16cf and 67c2e58.

📒 Files selected for processing (2)

• packages/chromium-bin/build.ncl
• packages/chromium-headless-shell-bin/build.ncl

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📝 Walkthrough

Walkthrough

The Chromium and headless-shell packages now track Playwright revision 1237, Chrome 152.0.7977.8, and snapshot 1669021. Their pre-stable documentation and architecture-specific artifact checksums were updated.

Changes

Chromium artifact updates

Layer / File(s)	Summary
Synchronized pins and checksums packages/chromium-bin/build.ncl, packages/chromium-headless-shell-bin/build.ncl	The packages document their pre-stable status, use the updated Chromium revision and snapshot, and contain refreshed amd64 and arm64 artifact checksums.

Estimated code review effort: 2 (Simple) | ~10 minutes

🚥 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 clearly identifies the Chromium version update and matches the main change in both package files.
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.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch update-chromium-152.0.7977.8

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