chore: upgrade astro to v7 and related integrations

package.json

@@ -33,11 +33,11 @@
     "push:prod": "git push origin main:prod"
   },
   "dependencies": {
-    "@astrojs/check": "^0.9.8",
-    "@astrojs/markdown-remark": "^7.0.1",
-    "@astrojs/mdx": "^5.0.2",
-    "@astrojs/rss": "^4.0.17",
-    "@astrojs/svelte": "^8.0.3",
+    "@astrojs/check": "^0.9.9",
+    "@astrojs/markdown-remark": "^7.2.1",
+    "@astrojs/mdx": "^7.0.2",
+    "@astrojs/rss": "^4.0.19",
+    "@astrojs/svelte": "^9.0.1",
     "@expressive-code/plugin-collapsible-sections": "^0.41.7",
     "@expressive-code/plugin-line-numbers": "^0.41.7",
     "@iconify-json/fa6-brands": "^1.2.6",
@@ -48,7 +48,7 @@
     "@iconify/svelte": "^5.2.1",
     "@resvg/resvg-js": "^2.6.2",
     "@tailwindcss/vite": "^4.2.1",
-    "astro": "^6.0.8",
+    "astro": "^7.0.7",
     "astro-expressive-code": "^0.41.7",
     "astro-icon": "^1.1.5",
     "class-variance-authority": "^0.7.1",