Upgrade GitHub Actions for Node 24 compatibility (NVIDIA#1378)

Signed-off-by: Salman Muin Kayser Chishti <13schishti@gmail.com>

Author: salmanmkc

.github/workflows/build-wheel.yml

@@ -51,7 +51,7 @@ jobs:
 
       # xref: https://github.com/orgs/community/discussions/42856#discussioncomment-7678867
       - name: Adding addtional GHA cache-related env vars
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             core.exportVariable('ACTIONS_CACHE_URL', process.env['ACTIONS_CACHE_URL'])

.github/workflows/cleanup-pr-previews.yml

@@ -28,7 +28,7 @@ jobs:
     if: github.repository_owner == 'NVIDIA'
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           # Fetch all history and branches for worktree operations
           fetch-depth: 0