Downgrade vitest and related packages

Downgraded `vitest` and `@vitest/coverage-v8` to version 3.2.4 in `package.json`. This change addresses compatibility issues or aligns with project requirements by using stable, well-supported versions.

Author: hckhanh

package.json

@@ -24,11 +24,11 @@
   "devDependencies": {
     "@biomejs/biome": "2.3.2",
     "@codspeed/vitest-plugin": "5.0.1",
-    "@vitest/coverage-v8": "4.0.6",
+    "@vitest/coverage-v8": "3.2.4",
     "syncpack": "14.0.0-alpha.23",
     "tsdown": "0.15.12",
     "typescript": "5.9.3",
-    "vitest": "4.0.6"
+    "vitest": "3.2.4"
   },
   "files": [
     "dist"