Update sigstore/cosign-installer action to v3.4.0

Created by: renovate[bot]

This PR contains the following updates:

Package	Type	Update	Change
sigstore/cosign-installer	action	minor	v3.3.0 -> v3.4.0

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Release Notes

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

v3.4.0

Compare Source

What's Changed

• Use examples that work with multiple tags by @​jkreileder in https://github.com/sigstore/cosign-installer/pull/155
• default cosign install to release v2.2.3 by @​cpanato in https://github.com/sigstore/cosign-installer/pull/156

New Contributors

• @​jkreileder made their first contribution in https://github.com/sigstore/cosign-installer/pull/155

Full Changelog: https://github.com/sigstore/cosign-installer/compare/v3...v3.4.0

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