Add missing transaction decline reasons

[BreD1810]

Possible decline reasons include SCA_NOT_AUTHENTICATED_CARD_NOT_PRESENT and STRONG_CUSTOMER_AUTHENTICATION_REQUIRED (part of the Strong Customer Authentication scheme). Sadly, these are not documented on the Monzo documentation.

This PR:

• Adds the SCA card not present decline reason.
• Adds SCA required decline reason.
• Adds a test including the card not present decline reason.

[codecov[bot]]

Codecov Report

Merging #19 (1f64376) into main (8568bed) will increase coverage by 1.17%. The diff coverage is 100.00%.

@@           Coverage Diff            @@
##            main     #19      +/-   ##
========================================
+ Coverage   7.29%   8.47%   +1.17%     
========================================
  Files         18      18              
  Lines        233     236       +3     
========================================
+ Hits          17      20       +3     
  Misses       216     216              

Impacted Files	Coverage Δ
src/endpoints/transactions.rs	100.00% <100.00%> (ø)

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[danieleades]

Thanks @BreD1810, I'll take a look this evening!

Looks like I might have to pin the clap version to get the CI passing

[danieleades]

@BreD1810 do you want to rebase? that should resolve the CI issue

[BreD1810]

@danieleades Rebase has now fixed the CI, thanks!