build(deps-dev): update @patternfly/patternfly-a11y requirement

Updates the requirements on [@patternfly/patternfly-a11y](https://github.com/patternfly/patternfly-a11y) to permit the latest version.
- [Release notes](https://github.com/patternfly/patternfly-a11y/releases)
- [Changelog](https://github.com/patternfly/patternfly-a11y/blob/master/RELEASE.md)
- [Commits](patternfly/patternfly-a11y@v5.1.0...v5.2.1)

---
updated-dependencies:
- dependency-name: "@patternfly/patternfly-a11y"
  dependency-version: 5.2.1
  dependency-type: direct:development
...

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

Author: dependabot[bot]

packages/module/package.json

@@ -46,7 +46,7 @@
     "@patternfly/documentation-framework": "^6.24.2",
     "@patternfly/patternfly": "^6.4.0",
     "@patternfly/react-code-editor": "^6.4.0",
-    "@patternfly/patternfly-a11y": "^5.1.0",
+    "@patternfly/patternfly-a11y": "^5.2.1",
     "@types/react": "^18.3.27",
     "@types/react-dom": "^18.3.7",
     "@types/react-router-dom": "^5.3.3",