fix(ci): enable LFS in GitHub Actions workflow, rename it

.github/workflows/run_tests.yml

@@ -1,4 +1,4 @@
-name: Test B01_SL_load_single_file
+name: Test steps
 on:
   pull_request: {}
   push:
@@ -14,6 +14,8 @@ jobs:
       - name: install mpi
         run: sudo apt update && sudo apt-get install openmpi-bin openmpi-doc libopenmpi-dev 
       - uses: actions/checkout@v3
+        with:
+          lfs: true
       - name: setup python
         uses: actions/setup-python@v4
         with: