Bump svelte-check from 3.6.9 to 3.8.4

Bumps [svelte-check](https://github.com/sveltejs/language-tools) from 3.6.9 to 3.8.4.
- [Release notes](https://github.com/sveltejs/language-tools/releases)
- [Commits](sveltejs/language-tools@svelte-check-3.6.9...svelte-check-3.8.4)

---
updated-dependencies:
- dependency-name: svelte-check
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

package.json

@@ -19,7 +19,7 @@
     "@sveltejs/vite-plugin-svelte": "^2.4.2",
     "@tsconfig/svelte": "^5.0.0",
     "svelte": "^4.0.5",
-    "svelte-check": "^3.4.6",
+    "svelte-check": "^3.8.4",
     "svelte-preprocess": "^5.0.0",
     "tslib": "^2.6.0",
     "typescript": "^5.0.2",