chore(deps): bump astro in the npm_and_yarn group across 1 directory

Bumps the npm_and_yarn group with 1 update in the / directory: [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro).


Updates `astro` from 4.16.6 to 4.16.18
- [Release notes](https://github.com/withastro/astro/releases)
- [Changelog](https://github.com/withastro/astro/blob/astro@4.16.18/packages/astro/CHANGELOG.md)
- [Commits](https://github.com/withastro/astro/commits/astro@4.16.18/packages/astro)

---
updated-dependencies:
- dependency-name: astro
  dependency-type: direct:production
  dependency-group: npm_and_yarn
...

Signed-off-by: dependabot[bot] <support@github.com>

apps/portal-frontend/package.json

@@ -17,7 +17,7 @@
 		"@radix-ui/react-slot": "^1.1.0",
 		"@types/react": "^19.0.1",
 		"@types/react-dom": "^19.0.2",
-		"astro": "^5.0.5",
+		"astro": "^4.16.18",
 		"class-variance-authority": "^0.7.1",
 		"clsx": "^2.1.1",
 		"i": "^0.3.7",

package.json

@@ -92,7 +92,7 @@
     "abstract-level": "^2.0.0",
     "ajv": "^8.17.1",
     "array-move": "^4.0.0",
-    "astro": "^4.16.1",
+    "astro": "^4.16.18",
     "autoprefixer": "^10.4.18",
     "axios": "^1.7.7",
     "blockstore-idb": "^2.0.0",