Build(deps-dev): Bump dependencies

- @astrojs/mdx   ^4.3.8  →   ^4.3.9
- astro         ^5.15.1  →  ^5.15.2

package.json

@@ -110,7 +110,7 @@
   "devDependencies": {
     "@astrojs/check": "^0.9.5",
     "@astrojs/markdown-remark": "^6.3.8",
-    "@astrojs/mdx": "^4.3.8",
+    "@astrojs/mdx": "^4.3.9",
     "@astrojs/prism": "^3.3.0",
     "@astrojs/sitemap": "^3.6.0",
     "@babel/cli": "^7.28.3",
@@ -126,7 +126,7 @@
     "@types/js-yaml": "^4.0.9",
     "@types/mime": "^4.0.0",
     "@types/prismjs": "^1.26.5",
-    "astro": "^5.15.1",
+    "astro": "^5.15.2",
     "astro-auto-import": "^0.4.5",
     "autoprefixer": "^10.4.21",
     "bundlewatch": "^0.4.1",