chore(deps): update dependency @eslint/markdown to v7

Author: renovate[bot]

package.json

@@ -36,7 +36,7 @@
   "devDependencies": {
     "@antfu/eslint-config": "^4.12.0",
     "@eslint/js": "^9.24.0",
-    "@eslint/markdown": "^6.3.0",
+    "@eslint/markdown": "^7.0.0",
     "@slidev/cli": "^51.5.0",
     "@typescript-eslint/eslint-plugin": "^8.29.1",
     "conventional-github-releaser": "^3.1.5",