Merge pull request #1396 from Webperf-se/dependabot/npm_and_yarn/pa11y-9.1.0

Bump pa11y from 9.0.1 to 9.1.0

Author: 7h3Rabbit

package.json

@@ -17,7 +17,7 @@
   "dependencies": {
     "@sitespeed.io/plugin": "1.0.0",
     "@sitespeed.io/plugin-lighthouse": "13.0.1",
-    "pa11y": "9.0.1",
+    "pa11y": "9.1.0",
     "sitespeed.io": "39.4.2",
     "plugin-css": "2026.1.1",
     "plugin-html": "2026.1.1",