Bump postgres:18.3 Docker digest to 7848165

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
postgres	final	digest	059fa02 → 7848165

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.99%. Comparing base (faf02d9) to head (d10ec3d).
⚠️ Report is 1 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4319   +/-   ##
=======================================
  Coverage   75.99%   75.99%           
=======================================
  Files         466      466           
  Lines       18577    18577           
=======================================
  Hits        14118    14118           
  Misses       4459     4459           

Flag	Coverage Δ
unittests-Instrumentation.EntityFrameworkCore	81.39% <ø> (ø)

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