chore(deps): update actions/checkout action to v7

Author: renovate[bot]

.github/workflows/sharevb-vercel-preview.yml

@@ -13,7 +13,7 @@ jobs:
   Deploy-Preview:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7
       - name: Install Vercel CLI
         run: npm install --global vercel@latest
       - name: Pull Vercel Environment Information

.github/workflows/sharevb-vercel-prod.yml

@@ -12,7 +12,7 @@ jobs:
   Deploy-Production:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7
       - name: Install Vercel CLI
         run: npm install --global vercel@latest
       - name: Pull Vercel Environment Information