Fix test.

3 jobs for enhancement/migrate_to_pytest in 4 minutes and 57 seconds (queued for 8 seconds)
Name Stage Failure
failed
test_urls Test
https://www.gfz-potsdam.de/
http://www.apache.org/licenses/LICENSE-2.0


Done. The following urls did not pass:
https://danschef.git-pages.gfz-potsdam.de/py_tools_ds/tests_reports/report.html
make: *** [Makefile:65: urlcheck] Error 1
Cleaning up file based variables
ERROR: Job failed: exit code 1