Update actions/cache action to v6

[balena-renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/cache	action	major	v4 → v6

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Release Notes

actions/cache (actions/cache)

v6.1.0

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What's Changed

• Bump @​actions/cache to v6.1.0 - handle read-only cache access by @​jasongin in #​1768

Full Changelog: actions/cache@v6...v6.1.0

v6.0.0

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What's Changed

• Update packages, migrate to ESM by @​Samirat in #​1760

Full Changelog: actions/cache@v5...v6.0.0

v6

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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

v5.0.4

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What's Changed

• Add release instructions and update maintainer docs by @​Link- in #​1696
• Potential fix for code scanning alert no. 52: Workflow does not contain permissions by @​Link- in #​1697
• Fix workflow permissions and cleanup workflow names / formatting by @​Link- in #​1699
• docs: Update examples to use the latest version by @​XZTDean in #​1690
• Fix proxy integration tests by @​Link- in #​1701
• Fix cache key in examples.md for bun.lock by @​RyPeck in #​1722
• Update dependencies & patch security vulnerabilities by @​Link- in #​1738

New Contributors

• @​XZTDean made their first contribution in #​1690
• @​RyPeck made their first contribution in #​1722

Full Changelog: actions/cache@v5...v5.0.4

v5.0.3

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What's Changed

• Bump @actions/cache to v5.0.5 (Resolves: https://github.com/actions/cache/security/dependabot/33)
• Bump @actions/core to v2.0.3

Full Changelog: actions/cache@v5...v5.0.3

v5.0.2: v.5.0.2

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v5.0.2

What's Changed

When creating cache entries, 429s returned from the cache service will not be retried.

v5.0.1

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[!IMPORTANT]
actions/cache@v5 runs on the Node.js 24 runtime and requires a minimum Actions Runner version of 2.327.1.

If you are using self-hosted runners, ensure they are updated before upgrading.

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v5.0.1

What's Changed

• fix: update @​actions/cache for Node.js 24 punycode deprecation by @​salmanmkc in #​1685
• prepare release v5.0.1 by @​salmanmkc in #​1686

v5.0.0

What's Changed

• Upgrade to use node24 by @​salmanmkc in #​1630
• Prepare v5.0.0 release by @​salmanmkc in #​1684

Full Changelog: actions/cache@v5...v5.0.1

v5.0.0

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[!IMPORTANT]
actions/cache@v5 runs on the Node.js 24 runtime and requires a minimum Actions Runner version of 2.327.1.

If you are using self-hosted runners, ensure they are updated before upgrading.

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What's Changed

• Upgrade to use node24 by @​salmanmkc in #​1630
• Prepare v5.0.0 release by @​salmanmkc in #​1684

Full Changelog: actions/cache@v4.3.0...v5.0.0

v5

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