📌(deps) pin remark-gfm to 3.0.1

The MDX package is still broken as it does not support the new major
version of remark-gfm.

packages/react/package.json

@@ -97,7 +97,7 @@
     "glob": "10.3.10",
     "jsdom": "22.1.0",
     "react-hook-form": "7.47.0",
-    "remark-gfm": "4.0.0",
+    "remark-gfm": "3.0.1",
     "sass": "1.68.0",
     "sass-loader": "13.3.2",
     "storybook": "7.4.5",

renovate.json

@@ -1,5 +1,5 @@
 {
   "extends": ["github>openfun/renovate-configuration"],
-  "ignoreDeps": ["chalk", "@storybook/builder-vite"],
+  "ignoreDeps": ["chalk", "@storybook/builder-vite", "remark-gfm"],
   "ignorePaths": ["**/node_modules/**"]
 }