Merge pull request #1508 from Webperf-se/dependabot/npm_and_yarn/plugin-pagenotfound-2026.6.0

Bump plugin-pagenotfound from 2026.5.1 to 2026.6.0

Author: marcusosterberg

package.json

@@ -22,7 +22,7 @@
     "plugin-css": "2026.6.0",
     "plugin-html": "2026.6.0",
     "plugin-javascript": "2026.6.0",
-    "plugin-pagenotfound": "2026.5.1",
+    "plugin-pagenotfound": "2026.6.0",
     "plugin-accessibility-statement": "2026.6.0",
     "plugin-webperf-core": "2026.6.0"
   },