Update postgres:15 Docker digest to d4e96ed

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
postgres	digest	992c539 -> d4e96ed

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Configuration

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🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

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[codecov[bot]]

Codecov Report

Merging #453 (4211b4e) into main (fc13282) will increase coverage by 31.77%. The diff coverage is n/a.

@@             Coverage Diff             @@
##             main     #453       +/-   ##
===========================================
+ Coverage   27.42%   59.19%   +31.77%     
===========================================
  Files          10       10               
  Lines         598      598               
===========================================
+ Hits          164      354      +190     
+ Misses        423      173      -250     
- Partials       11       71       +60     

Flag	Coverage Δ
integrationtests	38.29% <ø> (?)
unittests	26.58% <ø> (-0.84%)	:arrow_down:

Flags with carried forward coverage won't be shown. Click here to find out more.

see 5 files with indirect coverage changes