Bump vitest to v3 beta (#12876)

benchmark/package.json

@@ -25,6 +25,6 @@
   },
   "devDependencies": {
     "@codspeed/vitest-plugin": "3.1.1",
-    "vitest": "2.1.8"
+    "vitest": "^3.0.0-beta.3"
   }
 }

examples/container-with-vitest/package.json

@@ -15,7 +15,7 @@
     "astro": "^5.1.2",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
-    "vitest": "^2.1.6"
+    "vitest": "^3.0.0-beta.3"
   },
   "devDependencies": {
     "@types/react": "^18.3.12",

examples/with-vitest/package.json

@@ -12,6 +12,6 @@
   },
   "dependencies": {
     "astro": "^5.1.2",
-    "vitest": "^2.1.6"
+    "vitest": "^3.0.0-beta.3"
   }
 }

packages/astro/package.json

@@ -216,7 +216,7 @@
     "sass": "^1.81.0",
     "undici": "^6.21.0",
     "unified": "^11.0.5",
-    "vitest": "^2.1.6"
+    "vitest": "^3.0.0-beta.3"
   },
   "engines": {
     "node": "^18.17.1 || ^20.3.0 || >=22.0.0",

packages/astro/test/fixtures/vitest/package.json

@@ -8,6 +8,6 @@
   },
   "dependencies": {
     "astro": "workspace:*",
-    "vitest": "^2.1.6"
+    "vitest": "^3.0.0-beta.3"
   }
 }