Add minimum length to AuBankAccountNumberConfig

[samer-stripe]

Summary

Add minimum length to AuBankAccountNumberConfig.

Motivation

Resolves https://jira.corp.stripe.com/browse/RUN_MOBILESDK-3682

Au Becs can have a minimum of 5 digits (4 for Cuscal (BSB prefix 80)) however the SDK only allows for an account number with 9 digits. This PR allows for 4-5 digit account numbers for Becs.

Testing

• Added tests
• Modified tests
• Manually verified

[samer-stripe]

Ideally, we would only enable a minimum length of 4 for Cuscal but given that LUXE provides these fields separately and we have no way of currently observing other form field values, I haven't been able to think of a solution that doesn't either :

• Make major changes to element system to observe values coming from other elements.
• Makes static assumptions on an LPM's elements (ignore LUXE and make a custom Element to handle all of Becs similar to AddressElement).

[github-actions]

Diffuse output:

OLD: paymentsheet-example-release-master.apk (signature: V1, V2)
NEW: paymentsheet-example-release-pr.apk (signature: V1, V2)

          │           compressed           │         uncompressed          
          ├───────────┬───────────┬────────┼───────────┬───────────┬───────
 APK      │ old       │ new       │ diff   │ old       │ new       │ diff  
──────────┼───────────┼───────────┼────────┼───────────┼───────────┼───────
      dex │   3.8 MiB │   3.8 MiB │ -153 B │   8.4 MiB │   8.4 MiB │ +20 B 
     arsc │   2.3 MiB │   2.3 MiB │    0 B │   2.3 MiB │   2.3 MiB │   0 B 
 manifest │     5 KiB │     5 KiB │    0 B │  24.9 KiB │  24.9 KiB │   0 B 
      res │ 902.2 KiB │ 902.2 KiB │    0 B │   1.4 MiB │   1.4 MiB │   0 B 
   native │   2.6 MiB │   2.6 MiB │    0 B │     6 MiB │     6 MiB │   0 B 
    asset │   1.6 MiB │   1.6 MiB │    0 B │   1.6 MiB │   1.6 MiB │   0 B 
    other │ 199.8 KiB │ 199.8 KiB │   +7 B │ 440.1 KiB │ 440.1 KiB │   0 B 
──────────┼───────────┼───────────┼────────┼───────────┼───────────┼───────
    total │  11.4 MiB │  11.4 MiB │ -146 B │  20.2 MiB │  20.2 MiB │ +20 B 

 DEX     │ old   │ new   │ diff      
─────────┼───────┼───────┼───────────
   files │     1 │     1 │ 0         
 strings │ 39758 │ 39758 │ 0 (+1 -1) 
   types │ 13711 │ 13711 │ 0 (+0 -0) 
 classes │ 11403 │ 11403 │ 0 (+0 -0) 
 methods │ 58601 │ 58601 │ 0 (+0 -0) 
  fields │ 38901 │ 38901 │ 0 (+0 -0) 

 ARSC    │ old  │ new  │ diff 
─────────┼──────┼──────┼──────
 configs │  242 │  242 │  0   
 entries │ 6189 │ 6189 │  0

APK

    compressed     │   uncompressed    │                        
──────────┬────────┼───────────┬───────┤                        
 size     │ diff   │ size      │ diff  │ path                   
──────────┼────────┼───────────┼───────┼────────────────────────
  3.8 MiB │ -153 B │   8.4 MiB │ +20 B │ ∆ classes.dex          
   53 KiB │  +11 B │ 117.6 KiB │   0 B │ ∆ META-INF/CERT.SF     
 49.7 KiB │   -3 B │ 117.5 KiB │   0 B │ ∆ META-INF/MANIFEST.MF 
  1.2 KiB │   -1 B │   1.2 KiB │   0 B │ ∆ META-INF/CERT.RSA    
──────────┼────────┼───────────┼───────┼────────────────────────
  3.9 MiB │ -146 B │   8.6 MiB │ +20 B │ (total)

DEX

STRINGS:

   old   │ new   │ diff      
  ───────┼───────┼───────────
   39758 │ 39758 │ 0 (+1 -1) 
  
  + ~~R8{"backend":"dex","compilation-mode":"release","has-checksums":false,"min-api":21,"pg-map-id":"bdb5a7e","r8-mode":"full","version":"8.7.14"}
  
  - ~~R8{"backend":"dex","compilation-mode":"release","has-checksums":false,"min-api":21,"pg-map-id":"7f4827a","r8-mode":"full","version":"8.7.14"}