Fix sed to install latest foldcomp in notebook test

Author: milot-mirdita

.github/workflows/test-notebook.yml

@@ -20,5 +20,5 @@ jobs:
         pip install papermill notebook
     - name: Run notebook
       run: |
-        sed -i -E 's|foldcomp==\d\.\d\.\d|@ git+https://github.com/steineggerlab/foldcomp|g' foldcomp-py-examples.ipynb
+        sed -E -i 's|foldcomp==[0-9]+.[0-9]+.[0-9]+|foldcomp @ git+https://github.com/steineggerlab/foldcomp|g' foldcomp-py-examples.ipynb
         (cd test; papermill ../foldcomp-py-examples.ipynb ../foldcomp-py-examples-out.ipynb)