Fix issue with limited postal code input

[tillh-stripe]

Summary

This pull request fixes an issue where non-US and non-Canadian postal codes were limited to a single character.

Motivation

Resolves: #5714

Testing

• Added tests
• Modified tests
• Manually verified

Screenshots

Before	After
before screenshot	after screenshot

Changelog

[FIXED] Postal codes for countries other than US and Canada are no longer limited to a single character.

[github-actions]

Diffuse output:

OLD: paymentsheet-example-release-master.apk (signature: none)
NEW: paymentsheet-example-release-pr.apk (signature: none)

          │         compressed         │         uncompressed         
          ├──────────┬──────────┬──────┼───────────┬───────────┬──────
 APK      │ old      │ new      │ diff │ old       │ new       │ diff 
──────────┼──────────┼──────────┼──────┼───────────┼───────────┼──────
      dex │  5.2 MiB │  5.2 MiB │ +1 B │  13.5 MiB │  13.5 MiB │  0 B 
     arsc │  1.9 MiB │  1.9 MiB │  0 B │   1.9 MiB │   1.9 MiB │  0 B 
 manifest │  4.1 KiB │  4.1 KiB │  0 B │  19.2 KiB │  19.2 KiB │  0 B 
      res │    1 MiB │    1 MiB │  0 B │   1.8 MiB │   1.8 MiB │  0 B 
   native │  2.5 MiB │  2.5 MiB │  0 B │   5.9 MiB │   5.9 MiB │  0 B 
    asset │    3 MiB │    3 MiB │ -1 B │     3 MiB │     3 MiB │ -1 B 
    other │ 82.5 KiB │ 82.5 KiB │  0 B │ 158.5 KiB │ 158.5 KiB │  0 B 
──────────┼──────────┼──────────┼──────┼───────────┼───────────┼──────
    total │ 13.7 MiB │ 13.7 MiB │  0 B │  26.3 MiB │  26.3 MiB │ -1 B 

         │          raw           │           unique            
         ├────────┬────────┬──────┼────────┬────────┬───────────
 DEX     │ old    │ new    │ diff │ old    │ new    │ diff      
─────────┼────────┼────────┼──────┼────────┼────────┼───────────
   files │      2 │      2 │    0 │        │        │           
 strings │  84308 │  84308 │    0 │  70089 │  70089 │ 0 (+0 -0) 
   types │  21696 │  21696 │    0 │  19525 │  19525 │ 0 (+0 -0) 
 classes │  17503 │  17503 │    0 │  17503 │  17503 │ 0 (+0 -0) 
 methods │  93892 │  93892 │    0 │  89915 │  89915 │ 0 (+0 -0) 
  fields │ 101806 │ 101806 │    0 │ 100569 │ 100569 │ 0 (+0 -0) 

 ARSC    │ old  │ new  │ diff 
─────────┼──────┼──────┼──────
 configs │  334 │  334 │  0   
 entries │ 6252 │ 6252 │  0

APK

   compressed   │  uncompressed  │                                
─────────┬──────┼─────────┬──────┤                                
 size    │ diff │ size    │ diff │ path                           
─────────┼──────┼─────────┼──────┼────────────────────────────────
   766 B │ -2 B │   634 B │ -2 B │ ∆ assets/dexopt/baseline.profm 
   8 KiB │ +1 B │ 7.8 KiB │ +1 B │ ∆ assets/dexopt/baseline.prof  
 2.1 MiB │ +1 B │ 5.8 MiB │  0 B │ ∆ classes2.dex                 
─────────┼──────┼─────────┼──────┼────────────────────────────────
 2.1 MiB │  0 B │ 5.8 MiB │ -1 B │ (total)

[tillh-stripe]

While this doesn’t impact the resolution of the issue, it makes more sense to me than the previous implementation: A field is full when it reaches the maximum length, not when it exceeds the minimum length.