fix(deps): vuln msgpack (minor → 1.2.1)

[gh-worker-campaigns-3e9aa4]

Summary: High-severity security update — 1 package upgraded (MINOR changes included)

Manifests changed:

• . (pep621)

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✅ Action Required: Please review the changes below. If they look good, approve and merge this PR.

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Updates

Package	From	To	Type	Dep Type	Vulnerabilities Fixed
msgpack	1.0.0	1.2.1	minor	Direct	2 HIGH

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Security Details

🚨 Critical & High Severity (2 fixed)

Package	CVE	Severity	Summary	Unsafe Version	Fixed In	Case
msgpack	GHSA-6v7p-g79w-8964	HIGH	MessagePack for Python: Out-of-bounds read / crash on Unpacker reuse after a caught error	1.0.0	1.2.1	-
msgpack	CVE-2026-57585	HIGH	MessagePack: Out-of-bounds read/crash on Unpacker reuse after caught error	1.0.0	-	-

⚠️ Dependencies that have Reached EOL (1)

Dependency	Unsafe Version	EOL Date	New Version	Path	Case
msgpack	1.0.0	-	1.2.1	pyproject.toml	-

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Review Checklist

Standard review:

• Review changes for compatibility with your code
• Check for breaking changes in release notes
• Run tests locally or wait for CI
• Approve and merge this PR

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Update Mode: all_vulns

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