test(ci): publish unit reports in actions (#20547)

packages/app/package.json

@@ -15,6 +15,7 @@
     "build": "vite build",
     "serve": "vite preview",
     "test": "bun run test:unit",
+    "test:ci": "bun test --preload ./happydom.ts ./src --reporter=junit --reporter-outfile=.artifacts/unit/junit.xml",
     "test:unit": "bun test --preload ./happydom.ts ./src",
     "test:unit:watch": "bun test --watch --preload ./happydom.ts ./src",
     "test:e2e": "playwright test",