add the UK branch of Banking circle to the registry

[icfly2]

Adds the UK branch details for banking circle.

https://www.bankingcircle.com/regulatory-information/

I'm not sure about the sorting of the json, so I stuck it to the end.

[icfly2]

Anything I can do to get this merged?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.69%. Comparing base (daa13da) to head (834f1c8).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #231      +/-   ##
==========================================
+ Coverage   92.36%   92.69%   +0.32%     
==========================================
  Files          22       22              
  Lines        1218     1218              
  Branches       95       95              
==========================================
+ Hits         1125     1129       +4     
+ Misses         75       72       -3     
+ Partials       18       17       -1     

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