npm(deps): bump the prod-deps group across 1 directory with 4 updates

Bumps the prod-deps group with 4 updates in the / directory: [@astrojs/svelte](https://github.com/withastro/astro/tree/HEAD/packages/integrations/svelte), [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro), [svelte](https://github.com/sveltejs/svelte/tree/HEAD/packages/svelte) and [typescript](https://github.com/microsoft/TypeScript).


Updates `@astrojs/svelte` from 7.2.5 to 8.0.4
- [Release notes](https://github.com/withastro/astro/releases)
- [Changelog](https://github.com/withastro/astro/blob/main/packages/integrations/svelte/CHANGELOG.md)
- [Commits](https://github.com/withastro/astro/commits/@astrojs/svelte@8.0.4/packages/integrations/svelte)

Updates `astro` from 5.18.1 to 6.1.2
- [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/astro@6.1.2/packages/astro)

Updates `svelte` from 5.55.0 to 5.55.1
- [Release notes](https://github.com/sveltejs/svelte/releases)
- [Changelog](https://github.com/sveltejs/svelte/blob/main/packages/svelte/CHANGELOG.md)
- [Commits](https://github.com/sveltejs/svelte/commits/svelte@5.55.1/packages/svelte)

Updates `typescript` from 5.9.3 to 6.0.2
- [Release notes](https://github.com/microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v5.9.3...v6.0.2)

---
updated-dependencies:
- dependency-name: "@astrojs/svelte"
  dependency-version: 8.0.4
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: prod-deps
- dependency-name: astro
  dependency-version: 6.1.2
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: prod-deps
- dependency-name: svelte
  dependency-version: 5.55.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: prod-deps
- dependency-name: typescript
  dependency-version: 6.0.2
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: prod-deps
...

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

Author: dependabot[bot]