fix(a11y): ignore target-size rule to allow WCAG 2.2 bump (#12560)

Author: kmcfaul

packages/react-docs/patternfly-a11y.config.js

@@ -106,7 +106,8 @@ module.exports = {
     'landmark-main-is-top-level',
     'scrollable-region-focusable',
     'link-in-text-block',
-    'aria-required-children'
+    'aria-required-children',
+    'target-size' // See if we can remove once https://github.com/patternfly/patternfly-react/issues/12558 is resolved
   ].join(','),
   ignoreIncomplete: true
 };