chore(devdeps): update dependency @nx/express to v21.6.8

Author: renovate[bot]

package.json

@@ -61,7 +61,7 @@
     "@nx/devkit": "21.2.3",
     "@nx/eslint": "21.2.3",
     "@nx/eslint-plugin": "21.2.3",
-    "@nx/express": "21.2.3",
+    "@nx/express": "21.6.8",
     "@nx/jest": "21.2.3",
     "@nx/js": "21.2.3",
     "@nx/playwright": "21.2.3",