Update testing.yml (#124)

Author: MMathisLab

.github/workflows/testing.yml

@@ -43,9 +43,9 @@ jobs:
           fi
         shell: bash
       - name: Install PyTables through Conda
-          shell: bash -el {0}  # Important: activates the conda environment
-          run: |
-            conda install pytables==3.8.0 "numpy<2"
+        shell: bash -el {0}  # Important: activates the conda environment
+        run: |
+          conda install pytables==3.8.0 "numpy<2"
       - name: Install and test
         run: |
           python -m pip install --upgrade pip wheel poetry