Tests: add test case for markdown tables

[wagner-intevation]

the markdown test cases were missing tests for the table extension

[wagner-intevation]

I don't understand why the tests fail

        File "/tmp/pip-build-env-73m3_uf_/normal/lib/python3.10/site-packages/setuptools_scm/_get_version_impl.py", line 63, in write_version_files
          dump_version(
        File "/tmp/pip-build-env-73m3_uf_/normal/lib/python3.10/site-packages/setuptools_scm/_integration/dump_version.py", line 36, in dump_version
          assert not write_to.is_absolute(), f"{write_to=}"
      AssertionError: write_to=PosixPath('/home/runner/work/moin/moin/src/moin/_version.py')

Please give me a hint of where the issue originates from.

[UlrichB22]

I think this error is a general problem and not related to you changes. I will compare the CI logs with the logs of the latest successful run.

[wagner-intevation]

rebased on master

[wagner-intevation]

now the tests succeed as expected :)