[backend] chore(deps): update aws-java-sdk-v2 monorepo to v2.40.3

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
software.amazon.awssdk:regions	2.40.2 -> 2.40.3
software.amazon.awssdk:apache-client	2.40.2 -> 2.40.3

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 50.13%. Comparing base (1bb3204) to head (764ea05).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #4539      +/-   ##
============================================
+ Coverage     50.12%   50.13%   +0.01%     
- Complexity     3638     3641       +3     
============================================
  Files           896      896              
  Lines         26578    26578              
  Branches       1991     1991              
============================================
+ Hits          13323    13326       +3     
  Misses        12455    12455              
+ Partials        800      797       -3     

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