Bump vite, @vitest/coverage-v8 and vitest in /assets (#2248)

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
         include:
           - elixir: "1.17"
             otp: "27"
-            node: 18.x
+            node: 20.x
     steps:
       - uses: actions/checkout@v3