chore(deps): update sigstore/cosign-installer action to v3.7.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
sigstore/cosign-installer	action	minor	v3.6.0 -> v3.7.0

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Release Notes

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

### [`v3.7.0`](https://redirect.github.com/sigstore/cosign-installer/releases/tag/v3.7.0) [Compare Source](https://redirect.github.com/sigstore/cosign-installer/compare/v3.6.0...v3.7.0) #### What's Changed - Bump actions/checkout from 4.1.7 to 4.2.0 by [@​dependabot](https://redirect.github.com/dependabot) in [https://github.com/sigstore/cosign-installer/pull/172](https://redirect.github.com/sigstore/cosign-installer/pull/172) - bump for latest cosign v2.4.1 release by [@​bobcallaway](https://redirect.github.com/bobcallaway) in [https://github.com/sigstore/cosign-installer/pull/173](https://redirect.github.com/sigstore/cosign-installer/pull/173) **Full Changelog**: https://github.com/sigstore/cosign-installer/compare/v3.6.0...v3.7.0

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