Updates the CI scripts updating the cosign-installer to v3. Thus, the cosign version now is v2. Which has breaking changes requiring some changes on how the command is called and removing the need of using environment variable to enable keyless signature.
Description
Updates the CI scripts updating the cosign-installer to v3. Thus, the cosign version now is v2. Which has breaking changes requiring some changes on how the command is called and removing the need of using environment variable to enable keyless signature.
Related to https://github.com/kubewarden/kubewarden-controller/issues/411