updated unit test

Author: Mash707

packages/react-core/src/components/Nav/__tests__/Generated/__snapshots__/NavExpandable.test.tsx.snap

@@ -39,6 +39,7 @@ exports[`NavExpandable should match snapshot (auto-generated) 1`] = `
       aria-labelledby="''"
       class="pf-v6-c-nav__subnav"
       hidden=""
+      inert=""
     >
       <h2
         class="pf-v6-screen-reader"

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

@@ -223,6 +223,7 @@ exports[`Nav Expandable Nav List - Trigger toggle 1`] = `
           aria-labelledby="grp-1"
           class="pf-v6-c-nav__subnav"
           hidden=""
+          inert=""
         >
           <ul
             class="pf-v6-c-nav__list"
@@ -355,6 +356,7 @@ exports[`Nav Expandable Nav List 1`] = `
           aria-labelledby="grp-1"
           class="pf-v6-c-nav__subnav"
           hidden=""
+          inert=""
         >
           <ul
             class="pf-v6-c-nav__list"
@@ -486,6 +488,7 @@ exports[`Nav Expandable Nav List with aria label 1`] = `
           aria-labelledby="grp-1"
           class="pf-v6-c-nav__subnav"
           hidden=""
+          inert=""
         >
           <h2
             class="pf-v6-screen-reader"