Resolve deprecation warnings in test suite

[codingjoe]

No description provided.

[codecov-commenter]

Codecov Report

Base: 76.92% // Head: 73.87% // Decreases project coverage by -3.05% ⚠️

Coverage data is based on head (d29992d) compared to base (1807ffe).
Patch coverage: 56.96% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #331      +/-   ##
==========================================
- Coverage   76.92%   73.87%   -3.06%     
==========================================
  Files          40       40              
  Lines         533      532       -1     
  Branches      110      106       -4     
==========================================
- Hits          410      393      -17     
- Misses        115      123       +8     
- Partials        8       16       +8     

Impacted Files	Coverage Δ
health_check/cache/__init__.py	33.33% <0.00%> (-66.67%)	⬇️
health_check/contrib/celery/__init__.py	33.33% <0.00%> (-66.67%)	⬇️
health_check/contrib/celery_ping/__init__.py	33.33% <0.00%> (-66.67%)	⬇️
health_check/contrib/psutil/__init__.py	0.00% <0.00%> (ø)
health_check/contrib/psutil/apps.py	0.00% <0.00%> (ø)
health_check/contrib/psutil/backends.py	0.00% <0.00%> (ø)
health_check/contrib/rabbitmq/__init__.py	33.33% <0.00%> (-66.67%)	⬇️
health_check/contrib/redis/__init__.py	33.33% <0.00%> (-66.67%)	⬇️
health_check/contrib/s3boto3_storage/__init__.py	0.00% <0.00%> (ø)
health_check/contrib/s3boto3_storage/apps.py	0.00% <0.00%> (ø)
... and 33 more

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