Use base image built today for tests

4 jobs for 14-c-fortran-bindings in 2 minutes and 27 seconds (queued for 2 seconds)
Name Stage Failure
failed
test_py3 Test
=========================== short test summary info ============================
FAILED test/test_sphharm.py::test_single - AssertionError:
============= 1 failed, 15 passed, 2 skipped in 109.76s (0:01:49) ==============
ERROR: InvocationError for command '/usr/bin/catchsegv pytest -sv' (exited with code 1)
___________________________________ summary ____________________________________
ERROR: py37: commands failed
Running after_script
Uploading artifacts for failed job
ERROR: Job failed: exit code 1