gather-model to pull git submodules from the PR (#431)

Summary: Pull Request resolved: #431

Reviewed By: huydhn

Differential Revision: D49504501

Author: digantdesai

.github/workflows/pull.yml

@@ -18,6 +18,8 @@ jobs:
       models: ${{ steps.gather-models.outputs.models }}
     steps:
       - uses: actions/checkout@v3
+        with:
+          submodules: 'true'
       - uses: actions/setup-python@v4
         with:
           python-version: '3.10'