chore(deps): update sigstore/cosign-installer action to v4

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This PR contains the following updates:

Package	Type	Update	Change
sigstore/cosign-installer	action	major	v3.10.0 -> v4.0.0

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Release Notes

sigstore/cosign-installer (sigstore/cosign-installer)

v4.0.0

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What's Changed?

Note: You must upgrade to cosign-installer v4 if you want to install Cosign v3+. You may still install Cosign v2.x with cosign-installer v4.

• Add support for Cosign v3 releases (#​201)

v3.10.1

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What's Changed?

Note: cosign-installer v3.x cannot be used to install Cosign v3.x. You must upgrade to cosign-installer v4 in order to use Cosign v3.

Note: This is planned to be the final release of Cosign v2, though we will cut new releases for any critical security or bug fixes. We recommend transitioning to Cosign v3.

• Bump default Cosign to v2.6.1 (#​203)

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Configuration

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Related Documentation

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