added lock statements

.github/workflows/CI_build.yml

@@ -67,13 +67,15 @@ jobs:
           poetry build
       - name: Test package
         run: |
+          poetry lock
           poetry install --only dev
           python -m twine check dist/*
       - name: Show pip list
         run: |
           pip list
       - name: Install development dependencies
         run: |
+          poetry lock
           poetry install
       - name: Show pip list again
         run: |
@@ -108,6 +110,7 @@ jobs:
       - name: Install dependencies (includinv dev + chemistry)
         run: |
           python -m pip install --upgrade pip poetry
+          poetry lock
           poetry install
       - name: Show pip list
         run: |