Vulnerability fix (#1155)

A bug in Astro's build process allows any unauthenticated user to read parts
of the server source code.

I've run Astro's global upgrade command that updates Astro and any
integrations because there were no major or minor version bumps.

- [Snyk link](https://app.snyk.io/org/centrapay/project/0cac2371-d4a0-41eb-ac8f-bf4b06c4c075)
- [CVE link](https://www.cve.org/CVERecord?id=CVE-2024-56159)
- [Fixed in release v5.0.8](https://github.com/withastro/astro/releases/tag/astro%405.0.8)

Test plan:
- Confirm site build and previews locally. Check
  - Guides
  - Code blocks
  - API reference
  - Connection pages

package.json

@@ -11,15 +11,15 @@
     "integration": "vitest --watch=false --config vitest.integration.config.js"
   },
   "devDependencies": {
-    "@astrojs/markdoc": "0.12.1",
-    "@astrojs/tailwind": "5.1.3",
-    "@astrojs/vue": "5.0.1",
+    "@astrojs/markdoc": "0.12.4",
+    "@astrojs/tailwind": "5.1.4",
+    "@astrojs/vue": "5.0.3",
     "@babel/eslint-parser": "^7.14.7",
     "@eslint/js": "^9.10.0",
     "@hbsnow/rehype-sectionize": "^1.0.7",
     "@headlessui/vue": "^1.6.0",
     "@tailwindcss/typography": "^0.5.15",
-    "astro": "5.0.3",
+    "astro": "5.1.1",
     "astro-expressive-code": "^0.38.3",
     "eslint": "^9.10.0",
     "eslint-plugin-astro": "^1.2.4",