Update unittest.yml

Author: Juntongkuki

.github/workflows/unittest.yml

@@ -18,6 +18,7 @@ jobs:
       - name: test_base
         run: |
           git clone https://github.com/Juntongkuki/tnlearn_actions
+          cd tnlearn_actions
           cd tests
           pip install h5py~=3.10.0
           pip install numpy~=1.26.2