markdown-it: Quadratic-time rendering of a single multi-line link reference definition with default options (regression since 14.0)

{
                    "vendor": "markdown-it",
                    "product": "markdown-it",
                    "versions": [
                        {
                            "version": ">= 14.1.0, < 14.3.3",
                            "status": "affected"
                        },
                        {
                            "version": ">= 15.0.0, < 15.0.3",
                            "status": "affected"
                        }
                    ]
                }