chore(deps-dev): bump the astro group with 2 updates

Bumps the astro group with 2 updates: [@astrojs/mdx](https://github.com/withastro/astro/tree/HEAD/packages/integrations/mdx) and [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro).


Updates `@astrojs/mdx` from 4.3.0 to 4.3.2
- [Release notes](https://github.com/withastro/astro/releases)
- [Changelog](https://github.com/withastro/astro/blob/main/packages/integrations/mdx/CHANGELOG.md)
- [Commits](https://github.com/withastro/astro/commits/@astrojs/mdx@4.3.2/packages/integrations/mdx)

Updates `astro` from 5.11.0 to 5.12.7
- [Release notes](https://github.com/withastro/astro/releases)
- [Changelog](https://github.com/withastro/astro/blob/main/packages/astro/CHANGELOG.md)
- [Commits](https://github.com/withastro/astro/commits/astro@5.12.7/packages/astro)

---
updated-dependencies:
- dependency-name: "@astrojs/mdx"
  dependency-version: 4.3.2
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: astro
- dependency-name: astro
  dependency-version: 5.12.7
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: astro
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -64,11 +64,11 @@
   },
   "devDependencies": {
     "@astrojs/check": "^0.9.4",
-    "@astrojs/mdx": "^4.3.0",
+    "@astrojs/mdx": "^4.3.4",
     "@rollup/plugin-typescript": "^12.1.3",
     "@typescript-eslint/eslint-plugin": "^8.35.1",
     "@typescript-eslint/parser": "^8.35.1",
-    "astro": "^5.10.0",
+    "astro": "^5.13.2",
     "autoprefixer": "^10.4.21",
     "bootstrap": "^5.3.7",
     "bundlewatch": "^0.4.1",