fix test warnings and parallel runs

[sainak]

we are going to drop most of the templates so django-coverage-plugin wont be required

[codecov-commenter]

Codecov Report

Merging #851 (20d96c5) into feat/testing (30b760d) will decrease coverage by 0.20%.
The diff coverage is n/a.

@@               Coverage Diff                @@
##           feat/testing     #851      +/-   ##
================================================
- Coverage         53.44%   53.24%   -0.21%     
================================================
  Files               177      153      -24     
  Lines              8700     8008     -692     
  Branches              0     1404    +1404     
================================================
- Hits               4650     4264     -386     
+ Misses             4050     3711     -339     
- Partials              0       33      +33     

Impacted Files	Coverage Δ
care/utils/filters/choicefilter.py	75.00% <0.00%> (-6.25%)	⬇️
...e/utils/serializer/phonenumber_ispossible_field.py	87.50% <0.00%> (-6.25%)	⬇️
care/users/api/serializers/user.py	61.86% <0.00%> (-4.24%)	⬇️
care/facility/models/facility.py	85.53% <0.00%> (-3.78%)	⬇️
care/users/models.py	85.61% <0.00%> (-3.60%)	⬇️
care/audit_log/receivers.py	26.26% <0.00%> (-3.04%)	⬇️
care/utils/models/jsonfield.py	23.07% <0.00%> (-2.57%)	⬇️
care/facility/models/patient.py	92.85% <0.00%> (-1.99%)	⬇️
care/facility/models/shifting.py	76.78% <0.00%> (-1.79%)	⬇️
care/facility/models/resources.py	76.78% <0.00%> (-1.79%)	⬇️
... and 32 more

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[shivankacker]

Great stuff!