[pre-commit.ci] auto fixes from pre-commit hooks

Author: pre-commit-ci[bot]

.github/workflows/tests-on-pr.yml

@@ -38,12 +38,12 @@ jobs:
         run: >-
           conda config --set always_yes yes
           --set changeps1 no
-          
+
       - name: Install diffpy.srreal and requirements
         run: |
           conda install --file requirements/conda.txt
           conda install --file requirements/test.txt
           python -m pip install . --no-deps
-          
+
       - name: Validate diffpy.pdfgui
         run: pytest tests