test(Radio): update snapshot to v6

Author: adamviktora

packages/react-core/src/components/Radio/__tests__/__snapshots__/Radio.test.tsx.snap

@@ -152,17 +152,17 @@ exports[`Radio label is string 1`] = `
 exports[`Radio labelPosition is "start" 1`] = `
 <DocumentFragment>
   <div
-    class="pf-v5-c-radio"
+    class="pf-v6-c-radio"
   >
     <label
-      class="pf-v5-c-radio__label"
+      class="pf-v6-c-radio__label"
       for="check"
     >
       Radio label
     </label>
     <input
       aria-invalid="false"
-      class="pf-v5-c-radio__input"
+      class="pf-v6-c-radio__input"
       data-ouia-component-id="OUIA-Generated-Radio-4"
       data-ouia-component-type="PF5/Radio"
       data-ouia-safe="true"