workaround flexparser frozen dataclass issue (#1412)

Author: AgnieszkaZaba

.github/workflows/tests+artifacts+pypi.yml

@@ -291,7 +291,7 @@ jobs:
         with:
           submodules: recursive
           fetch-depth: 0  # https://github.com/pypa/setuptools_scm/issues/480
-      - run: pip install -r tests/devops_tests/requirements.txt
+      - run: pip install -r tests/devops_tests/requirements.txt "flexparser<0.4"
       - env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: pytest --durations=10 -v -s -We -p no:unraisableexception -k "not test_run_notebooks" tests/devops_tests

setup.py

@@ -72,6 +72,7 @@ def get_long_description():
             else ""
         ),
         "pyevtk" + ("==1.2.0" if CI else ""),
+        "flexparser<0.4",
     ],
     extras_require={
         "tests": [