[torchrec] Update GH action

- Update GH action to unblock docs jobs

Author: q10

.github/workflows/docs.yml

@@ -23,7 +23,7 @@ jobs:
     - name: Check ldd --version
       run: ldd --version
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
     # Update references
     - name: Update pip
       run: |
@@ -83,7 +83,7 @@ jobs:
         conda run -n build_binary make html
         cd ..
     - name: Upload Built-Docs
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: Built-Docs
         path: docs/build/html/
@@ -103,9 +103,9 @@ jobs:
     if: ${{ github.event_name == 'pull_request' }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Download artifact
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: Built-Docs
           path: docs