test: actually upgrade nx

Author: pieh

tests/fixtures/nx-integrated/package.json

@@ -13,16 +13,16 @@
     "tslib": "^2.3.0"
   },
   "devDependencies": {
-    "@nx/js": "17.3.0",
-    "@nx/next": "17.3.0",
-    "@nx/workspace": "17.3.0",
-    "@swc-node/register": "~1.6.7",
-    "@swc/core": "~1.3.85",
-    "@swc/helpers": "~0.5.2",
+    "@nx/js": "21.6.3",
+    "@nx/next": "21.6.3",
+    "@nx/workspace": "21.6.3",
+    "@swc-node/register": "1.9.2",
+    "@swc/core": "1.5.7",
+    "@swc/helpers": "0.5.17",
     "@types/node": "18.16.9",
     "@types/react": "18.2.33",
     "@types/react-dom": "18.2.14",
-    "nx": "17.3.0",
+    "nx": "21.6.3",
     "ts-node": "10.9.1",
     "typescript": "~5.3.2"
   },