Bump axe-core from 4.9.0 to 4.9.1 in /thirdparty/WCAG

Bumps [axe-core](https://github.com/dequelabs/axe-core) from 4.9.0 to 4.9.1.
- [Release notes](https://github.com/dequelabs/axe-core/releases)
- [Changelog](https://github.com/dequelabs/axe-core/blob/develop/CHANGELOG.md)
- [Commits](dequelabs/axe-core@v4.9.0...v4.9.1)

---
updated-dependencies:
- dependency-name: axe-core
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Content/Templates/NFE/WCAG-Tabel-Gegenereerd.md

@@ -1,4 +1,4 @@
-| Item | Omschrijving | Niveau | Axe-core 4.9.0 regels |
+| Item | Omschrijving | Niveau | Axe-core 4.9.1 regels |
 | :--- | :--- | :--- | :--- |
 | Principe 1 | [Perceivable](https://www.w3.org/TR/WCAG22/#perceivable) | | |
 | Richtlijn 1.1 | [Text Alternatives](https://www.w3.org/TR/WCAG22/#text-alternatives) | | |

thirdparty/WCAG/package.json

@@ -1,5 +1,5 @@
 {
   "dependencies": {
-    "axe-core": "^4.9.0"
+    "axe-core": "^4.9.1"
   }
 }