Bump nx to ^20.8.3

Author: renovate[bot]

package.json

@@ -139,7 +139,7 @@
     "globby": "^15.0.0",
     "lerna": "^9.0.1",
     "markdownlint-cli2": "^0.18.1",
-    "nx": "^20.8.2",
+    "nx": "^20.8.3",
     "nyc": "^17.1.0",
     "playwright": "1.56.1",
     "prettier": "^3.6.2",