Merge pull request #30 from chinmina/deps/astro-6

build: upgrade to Astro 6

Author: jamestelfer

package.json

@@ -16,12 +16,12 @@
     "fmt:check": "biome format"
   },
   "dependencies": {
-    "@astrojs/check": "^0.9.6",
-    "@astrojs/starlight": "^0.37.6",
-    "astro": "^5.18.0",
-    "astro-d2": "^0.9.0",
+    "@astrojs/check": "^0.9.8",
+    "@astrojs/starlight": "^0.38.2",
+    "astro": "^6.0.8",
+    "astro-d2": "^0.10.0",
     "sharp": "^0.34.5",
-    "starlight-heading-badges": "^0.6.1",
+    "starlight-heading-badges": "^0.7.0",
     "typescript": "^5.9.3"
   },
   "devDependencies": {