Add cookie fixed release references

[cookesan]

Summary

• Add the cookie v0.7.0 GitHub release reference.
• Add the npm fixed-version reference for cookie 0.7.0.
• Leave affected range, severity, summary, and review metadata unchanged.

Validation

• Confirmed the v0.7.0 release notes list the cookie validation fix PR.
• Confirmed npm publishes cookie 0.7.0 and the tarball identifies cookie 0.7.0.
• Confirmed there is no active advisory-database PR for these fixed release references.

[cookesan]

Closing in favor of #8554, which already has the pending improvement for this advisory.