upgrade to Astro 6

website/package.json

@@ -11,19 +11,20 @@
     "node": "^22.14.0"
   },
   "dependencies": {
-    "@astrojs/db": "^0.18.3",
-    "@astrojs/mdx": "^4.3.0",
-    "@astrojs/node": "^9.5.1",
-    "@astrojs/rss": "^4.0.10",
-    "@astrojs/sitemap": "^3.2.1",
+    "@astrojs/db": "^0.20.1",
+    "@astrojs/mdx": "^5.0.2",
+    "@astrojs/node": "^10.0.3",
+    "@astrojs/rss": "^4.0.17",
+    "@astrojs/sitemap": "^3.7.1",
     "@types/nodemailer": "^7.0.4",
-    "astro": "^5.1.1",
+    "astro": "^6.0.8",
+    "gemtext": "^0.2.2",
     "markdown-it": "^14.1.0",
     "nodemailer": "^7.0.11",
     "typescript": "^5.4.3"
   },
   "devDependencies": {
-    "@astrojs/check": "^0.9.4",
+    "@astrojs/check": "^0.9.8",
     "@types/markdown-it": "^14.1.1"
   }
 }