Fix workflows: fall back to github.token when GH_PAT absent; fix Pages base path

All six workflows now use `secrets.GH_PAT || github.token` so they work
on public repos without a PAT configured. Pages base path updated from
/ps-uswds-react/ to /gps-design-systems-react/ to match new repo name.

Author: sschupbach-salesforce

.github/workflows/build.yml

@@ -16,7 +16,7 @@ jobs:
     steps:
       - uses: actions/checkout@9f698171ed81b15d1823a05fc7211befd50c8ae0 # v6.0.3
         with:
-          token: ${{ secrets.GH_PAT }}
+          token: ${{ secrets.GH_PAT || github.token }}
           persist-credentials: false
 
       - name: Set up Node

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ jobs:
     steps:
       - uses: actions/checkout@9f698171ed81b15d1823a05fc7211befd50c8ae0 # v6.0.3
         with:
-          token: ${{ secrets.GH_PAT }}
+          token: ${{ secrets.GH_PAT || github.token }}
           persist-credentials: false
 
       - name: Set up Node

.github/workflows/e2e.yml

@@ -16,7 +16,7 @@ jobs:
     steps:
       - uses: actions/checkout@9f698171ed81b15d1823a05fc7211befd50c8ae0 # v6.0.3
         with:
-          token: ${{ secrets.GH_PAT }}
+          token: ${{ secrets.GH_PAT || github.token }}
           persist-credentials: false
 
       - name: Set up Node

.github/workflows/pages.yml

@@ -19,7 +19,7 @@ jobs:
     steps:
       - uses: actions/checkout@9f698171ed81b15d1823a05fc7211befd50c8ae0 # v6.0.3
         with:
-          token: ${{ secrets.GH_PAT }}
+          token: ${{ secrets.GH_PAT || github.token }}
           persist-credentials: false
 
       - name: Set up Node
@@ -38,7 +38,7 @@ jobs:
         env:
           # Sub-path that GitHub Pages serves this repo under.
           # Change to / if using a custom domain or org/user Pages site.
-          COMPONENT_LAB_BASE: /ps-uswds-react/
+          COMPONENT_LAB_BASE: /gps-design-systems-react/
         run: npm run build --workspace=apps/component-lab
 
       - name: Upload Pages artifact

.github/workflows/release.yml

@@ -15,7 +15,7 @@ jobs:
     steps:
       - uses: actions/checkout@9f698171ed81b15d1823a05fc7211befd50c8ae0 # v6.0.3
         with:
-          token: ${{ secrets.GH_PAT }}
+          token: ${{ secrets.GH_PAT || github.token }}
           persist-credentials: false
 
       - name: Set up Node

.github/workflows/sf-release.yml

@@ -25,7 +25,7 @@ jobs:
     steps:
       - uses: actions/checkout@9f698171ed81b15d1823a05fc7211befd50c8ae0 # v6.0.3
         with:
-          token: ${{ secrets.GH_PAT }}
+          token: ${{ secrets.GH_PAT || github.token }}
           persist-credentials: false
           ref: ${{ github.event.inputs.sha }}