fix: Checkout and Git LFS fetch issue for pytorch docs workflow (#21219)

Author: bhimrazy

.github/workflows/docs-build.yml

@@ -67,6 +67,7 @@ jobs:
       - uses: actions/checkout@v5
         with:
           ref: ${{ inputs.checkout }}
+          token: ${{ secrets.GITHUB_TOKEN }}
           # only Pytorch has/uses notebooks
           submodules: ${{ matrix.pkg-name == 'pytorch' }}
           lfs: ${{ matrix.pkg-name == 'pytorch' }}

.gitmodules

@@ -1,4 +1,4 @@
 [submodule "_notebooks"]
 	path = _notebooks
-	url = https://github.com/Lightning-AI/lightning-tutorials.git
+	url = https://github.com/Lightning-AI/tutorials.git
 	branch = publication