ci(deps): update actions/cache action to v4.2.1

[eoeo-renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/cache	action	patch	v4.2.0 -> v4.2.1

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Release Notes

actions/cache (actions/cache)

v4.2.1

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What's Changed

[!IMPORTANT]
As a reminder, there were important backend changes to release v4.2.0, see those release notes and the announcement for more details.

• docs: GitHub is spelled incorrectly in caching-strategies.md by @​janco-absa in https://github.com/actions/cache/pull/1526
• docs: Make the "always save prime numbers" example more clear by @​Tobbe in https://github.com/actions/cache/pull/1525
• Update force deletion docs due a recent deprecation by @​sebbalex in https://github.com/actions/cache/pull/1500
• Bump @​actions/cache to v4.0.1 by @​robherley in https://github.com/actions/cache/pull/1554

New Contributors

• @​janco-absa made their first contribution in https://github.com/actions/cache/pull/1526
• @​Tobbe made their first contribution in https://github.com/actions/cache/pull/1525
• @​sebbalex made their first contribution in https://github.com/actions/cache/pull/1500

Full Changelog: actions/cache@v4.2.0...v4.2.1

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