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

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
sigstore/cosign-installer	action	major	v3.10.1 → v4.1.2

---

Release Notes

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

v4.1.2

Compare Source

What's Changed

• Bump cosign to 3.0.6 in #​232

v4.1.1

Compare Source

What's Changed

• chore: update default cosign-release to v3.0.5 in #​223

Full Changelog: sigstore/cosign-installer@v4.1.0...v4.1.1

v4.1.0

Compare Source

What's Changed

We recommend updating as soon as possible as this includes bug fixes for Cosign. We also recommend removing with: cosign-release and strongly discourage using cosign-release unless you have a specific reason to use an older version of Cosign.

• Bump cosign to 3.0.5 in #​220
• fix: add retry to curl downloads for transient network failures in #​210

Full Changelog: sigstore/cosign-installer@v4.0.0...v4.1.0

v4.0.0

Compare Source

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.

In version v3+, using cosign sign-blob requires adding the --bundle flag which may require you to update your signing command.

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

---

Configuration

📅 Schedule: (UTC)

• Branch creation
  • At any time (no schedule defined)
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

Results:
0 new issues

View in Codacy

_{NEW Get contextual insights on your PRs based on Codacy's metrics, along with PR and Jira context, without leaving GitHub. Enable AI reviewer
TIP This summary will be updated as you push new changes.}

[renner0e]

This is fine to merge now, the reason why we had to be cautious on our bootc image is that we have to use the old bundle format there. Which doesn't apply here, we are not tied to the limitations of container libs.