Merge pull request #230 from storybookjs/chore-vitest

chore: Upgrade `vitest` and `vite` dependencies & `jsdom` -> `happy-dom`

Author: JReinhold

package.json

@@ -78,28 +78,28 @@
     "@tsconfig/svelte": "^5.0.4",
     "@types/estree": "^1.0.6",
     "@types/node": "^20.14.9",
-    "@vitest/ui": "^1.6.0",
+    "@vitest/ui": "^2.1.4",
     "auto": "^11.1.6",
     "chromatic": "^11.16.1",
     "concurrently": "^8.2.2",
     "eslint": "^7.32.0",
     "eslint-plugin-storybook": "^0.8.0",
-    "jsdom": "^24.1.0",
+    "happy-dom": "^15.11.4",
     "prettier": "^3.3.2",
     "prettier-plugin-svelte": "^3.2.5",
     "rimraf": "^5.0.7",
-    "rollup": "^4.18.0",
+    "rollup": "^4.25.0",
     "storybook": "^8.0.0",
     "svelte": "^5.0.0",
     "svelte-check": "^4.0.5",
     "tslib": "^2.6.3",
     "type-fest": "^4.20.1",
     "typescript": "^5.5.2",
     "typescript-svelte-plugin": "^0.3.42",
-    "vite": "^5.3.2",
-    "vite-plugin-inspect": "^0.8.4",
+    "vite": "^5.4.11",
+    "vite-plugin-inspect": "^0.8.7",
     "vite-plugin-virtual": "^0.3.0",
-    "vitest": "^1.6.0"
+    "vitest": "^2.1.4"
   },
   "peerDependencies": {
     "@storybook/svelte": "^8.0.0",