Verifying SBOM reference with cosign verify-attestation returns error

[garrying]

Describe the bug The command to verify SBOMs using cosign verify-attestation returns an saying that --platform is an unknown flag.

To Reproduce Steps to reproduce the behavior:

1. Go to https://edu.chainguard.dev/chainguard/chainguard-images/reference/go/provenance_info/#downloading-and-verifying-sboms (applicable to all images with provenance_info I think)
2. Copy

   cosign verify-attestation \
   --type https://spdx.dev/Document \
   --certificate-oidc-issuer=https://token.actions.githubusercontent.com \
   --certificate-identity=https://github.com/chainguard-images/images/.github/workflows/release.yaml@refs/heads/main \
   --platform=linux/amd64 \
   cgr.dev/chainguard/go

3. Run command
4. Error:

   Error: unknown flag: --platform
   main.go:74: error during command execution: unknown flag: --platform

Expected behavior Should display verification without error.

Additional context Reproduced using cosign 2.2.0

[ltagliaferri]

This is a dupe of this issue, I'll close + link to this to track there: https://github.com/chainguard-dev/internal/issues/3362