deps(deps): update postgres docker tag to v16.4

[renovate]

This PR contains the following updates:

Package	Update	Change
postgres	minor	16.3-alpine -> 16.4-alpine

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

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Additional details and impacted files

@@            Coverage Diff             @@
##             develop      #32   +/-   ##
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  Coverage           ?   60.41%           
  Complexity         ?       41           
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  Files              ?       16           
  Lines              ?      192           
  Branches           ?        0           
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  Hits               ?      116           
  Misses             ?       76           
  Partials           ?        0           

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