fix(dependencies): update dependency django to ^2.2.28, ^2.2.28

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
Django (source, changelog)	^2.2 || ^3.0 -> ^2.2.28, ^2.2.28

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[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (ea29227) 100.00% compared to head (43c5ed3) 100.00%.

❗ Current head 43c5ed3 differs from pull request most recent head 90cd086. Consider uploading reports for the commit 90cd086 to get more accurate results

Additional details and impacted files

@@            Coverage Diff            @@
##            master       #10   +/-   ##
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  Coverage   100.00%   100.00%           
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  Files            1         1           
  Lines            9         9           
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  Hits             9         9           

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