Add the just-released gpt-5.2-codex#644

markusylisiurunen wants to merge 2 commits intoanomalyco:devanomalyco/models.dev:devfrom

markusylisiurunen:openai/gpt-5.2-codexmarkusylisiurunen/models.dev:openai/gpt-5.2-codexCopy head branch name to clipboard