Bumps [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer) from 3.0.3 to 3.0.4. - [Release notes](https://github.com/sigstore/cosign-installer/releases) - [Commits](https://github.com/sigstore/cosign-installer/compare/v3.0.3...v3.0.4) --- updated-dependencies: - dependency-name: sigstore/cosign-installer dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>