UML-3108 Two region environment

[ntse]

Purpose

Changes to codebase to allow the service to be deployed to multiple regions.

Fixes UML-3108

Approach

After testing deploying a secondary region to development, changes needed to be made to fix the various errors.

Learning

Any tips and tricks, blog posts or tools which helped you. Plus anything notable you've discovered about the Use a Lasting Power of Attorney service

Checklist

• I have performed a self-review of my own code
• I have added relevant logging with appropriate levels to my code
• New event_codes have been documented on the wiki page
• I have updated documentation (Confluence/GitHub wiki/tech debt doc) where relevant
• I have added tests to prove my work
• I have added welsh translation tags and updated translation files
• I have run an accessibility tool on any pages I have made changes to and fixed any issues found
• I have notified the Interaction Designer of any content changes so that appropriate screenshots/flow diagram changes can be made
• The product team have tested these changes

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (7dd3014) 92.11% compared to head (a21b3e6) 92.08%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #2486      +/-   ##
============================================
- Coverage     92.11%   92.08%   -0.03%     
+ Complexity     1510     1503       -7     
============================================
  Files           294      291       -3     
  Lines          6848     6824      -24     
============================================
- Hits           6308     6284      -24     
  Misses          523      523              
  Partials         17       17              

Flag	Coverage Δ
use-an-lpa-admin	88.81% <ø> (ø)
use-an-lpa-api	96.85% <100.00%> (+0.19%)	⬆️
use-an-lpa-front	89.21% <ø> (-0.18%)	⬇️

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

Files	Coverage Δ
...ss/ApiGateway/InstructionsAndPreferencesImages.php	100.00% <ø> (ø)
...src/DataAccess/ApiGateway/RequestSignerFactory.php	100.00% <100.00%> (ø)

... and 3 files with indirect coverage changes