build(deps): bump the starlight_astro group with 2 updates (#7635)

Bumps the starlight_astro group with 2 updates: [@expressive-code/plugin-line-numbers](https://github.com/expressive-code/expressive-code/tree/HEAD/packages/@expressive-code/plugin-line-numbers) and [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro).


Updates `@expressive-code/plugin-line-numbers` from 0.40.1 to 0.40.2
- [Release notes](https://github.com/expressive-code/expressive-code/releases)
- [Changelog](https://github.com/expressive-code/expressive-code/blob/main/packages/@expressive-code/plugin-line-numbers/CHANGELOG.md)
- [Commits](https://github.com/expressive-code/expressive-code/commits/@expressive-code/[email protected]/packages/@expressive-code/plugin-line-numbers)

Updates `astro` from 5.2.5 to 5.3.0
- [Release notes](https://github.com/withastro/astro/releases)
- [Changelog](https://github.com/withastro/astro/blob/main/packages/astro/CHANGELOG.md)
- [Commits](https://github.com/withastro/astro/commits/[email protected]/packages/astro)

---
updated-dependencies:
- dependency-name: "@expressive-code/plugin-line-numbers"
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: starlight_astro
- dependency-name: astro
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: starlight_astro
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

docs/astro/package.json

@@ -20,9 +20,9 @@
   "dependencies": {
     "@astrojs/check": "0.9.4",
     "@astrojs/starlight": "0.31.1",
-    "@expressive-code/plugin-line-numbers": "0.40.1",
+    "@expressive-code/plugin-line-numbers": "0.40.2",
     "@types/node": "20.16.10",
-    "astro": "5.2.5",
+    "astro": "5.3.0",
     "astro-embed": "0.9.0",
     "playwright": "1.50.1",
     "playwright-ctrf-json-reporter": "0.0.18",