meta: bump tsx from 4.19.4 to 4.20.3 in the testing group

---
updated-dependencies:
- dependency-name: tsx
  dependency-version: 4.20.3
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: testing
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

apps/site/package.json

@@ -108,7 +108,7 @@
     "stylelint-config-standard": "38.0.0",
     "stylelint-order": "7.0.0",
     "stylelint-selector-bem-pattern": "4.0.1",
-    "tsx": "^4.19.3",
+    "tsx": "^4.20.3",
     "typescript": "~5.8.2",
     "typescript-eslint": "~8.33.1",
     "user-agent-data-types": "0.4.2",

packages/ui-components/package.json

@@ -70,7 +70,7 @@
     "stylelint-config-standard": "^38.0.0",
     "stylelint-order": "7.0.0",
     "stylelint-selector-bem-pattern": "4.0.1",
-    "tsx": "^4.19.3",
+    "tsx": "^4.20.3",
     "typescript": "~5.8.2",
     "typescript-eslint": "~8.33.1"
   },