chore(ci): Update all non-major updates

[kthy]

@coderabbitai ignore

This PR contains the following updates:

Package	Type	Update	Change
actions/cache	action	minor	v5.0.4 → v5.1.0
actions/checkout	action	minor	v6.0.2 → v6.1.0

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Release Notes

actions/cache (actions/cache)

v5.1.0

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What's Changed

• Bump @​actions/cache to v5.1.0 - handle read-only cache access by @​jasongin in #​1775

Full Changelog: actions/cache@v5...v5.1.0

v5.0.5

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What's Changed

• Update ts-http-runtime dependency by @​yacaovsnc in #​1747

Full Changelog: actions/cache@v5...v5.0.5

actions/checkout (actions/checkout)

v6.1.0

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What's Changed

• [BREAKING] backport allow-unsafe-pr-checkout to v6 by @​aiqiaoy in #​2500
• backport fixes to releases-v6 by @​aiqiaoy in #​2527

https://github.blog/changelog/2026-06-18-safer-pull_request_target-defaults-for-github-actions-checkout/ for more details about this breaking change

Full Changelog: actions/checkout@v6.0.3...v6.1.0

v6.0.3

Compare Source

• Fix checkout init for SHA-256 repositories by @​yaananth in #​2439
• fix: expand merge commit SHA regex and add SHA-256 test cases by @​yaananth in #​2414

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