Bugfix/dm fix currency check consent

[DmitryMishchuk]

Summary

fixed AIS consent creation to support accounts without currency set

Checklist for Definition of Done

• [X] Code is technically reviewed by myself
• [X] Code is manually tested
• [X] Automatic tests for new functionality are created

[codecov[bot]]

Codecov Report

Merging #103 into master will increase coverage by 0.12%. The diff coverage is 100%.

@@             Coverage Diff              @@
##             master     #103      +/-   ##
============================================
+ Coverage     70.92%   71.05%   +0.12%     
- Complexity      239      241       +2     
============================================
  Files            67       67              
  Lines          1362     1361       -1     
  Branches         84       83       -1     
============================================
+ Hits            966      967       +1     
+ Misses          356      355       -1     
+ Partials         40       39       -1

Impacted Files	Coverage Δ	Complexity Δ
...d2/sandbox/xs2a/service/ais/AisConsentSpiImpl.java	78.57% <100%> (+6.15%)	10 <6> (+2)	:arrow_up:

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