Reduce CreateMerchantUser complexity in MerchantDomainService#1626

StuartFerguson merged 3 commits intomasterTransactionProcessing/TransactionProcessor:masterfrom

copilot/fix-cyclomatic-complexity-issue-another-oneTransactionProcessing/TransactionProcessor:copilot/fix-cyclomatic-complexity-issue-another-oneCopy head branch name to clipboard