Update PaymentMethodMessageJsonParser

[tjclawson-stripe]

Summary

Update StripeRepository.retrievePaymentMethodMessage to use /config endpoint
Update PaymentMethodMessageJsonParser

Motivation

Handle updated PMME API
Mobile PMME Render Flowchart

Testing

• Added tests
• Modified tests
• Manually verified

Screenshots

Before	After
before screenshot	after screenshot

Changelog

[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 │   4.8 MiB │   4.8 MiB │ -3 B │  10.7 MiB │  10.7 MiB │  0 B 
     arsc │   2.6 MiB │   2.6 MiB │  0 B │   2.6 MiB │   2.6 MiB │  0 B 
 manifest │   5.8 KiB │   5.8 KiB │  0 B │  30.6 KiB │  30.6 KiB │  0 B 
      res │ 928.7 KiB │ 928.7 KiB │  0 B │   1.5 MiB │   1.5 MiB │  0 B 
   native │   3.5 MiB │   3.5 MiB │  0 B │   8.5 MiB │   8.5 MiB │  0 B 
    asset │   1.6 MiB │   1.6 MiB │  0 B │   1.6 MiB │   1.6 MiB │  0 B 
    other │ 198.6 KiB │ 198.6 KiB │ +4 B │ 373.8 KiB │ 373.8 KiB │  0 B 
──────────┼───────────┼───────────┼──────┼───────────┼───────────┼──────
    total │  13.7 MiB │  13.7 MiB │ +1 B │  25.3 MiB │  25.3 MiB │  0 B 

         │         raw          │          unique           
         ├───────┬───────┬──────┼───────┬───────┬───────────
 DEX     │ old   │ new   │ diff │ old   │ new   │ diff      
─────────┼───────┼───────┼──────┼───────┼───────┼───────────
   files │     2 │     2 │    0 │       │       │           
 strings │ 54857 │ 54857 │    0 │ 50316 │ 50316 │ 0 (+1 -1) 
   types │ 19738 │ 19738 │    0 │ 17540 │ 17540 │ 0 (+0 -0) 
 classes │ 14814 │ 14814 │    0 │ 14814 │ 14814 │ 0 (+0 -0) 
 methods │ 75774 │ 75774 │    0 │ 72358 │ 72358 │ 0 (+0 -0) 
  fields │ 49639 │ 49639 │    0 │ 48277 │ 48277 │ 0 (+0 -0) 

 ARSC    │ old  │ new  │ diff 
─────────┼──────┼──────┼──────
 configs │  242 │  242 │  0   
 entries │ 6364 │ 6364 │  0

APK

    compressed    │   uncompressed   │                                           
───────────┬──────┼───────────┬──────┤                                           
 size      │ diff │ size      │ diff │ path                                      
───────────┼──────┼───────────┼──────┼───────────────────────────────────────────
  51.7 KiB │ +4 B │ 122.4 KiB │  0 B │ ∆ META-INF/MANIFEST.MF                    
     270 B │ -2 B │     120 B │  0 B │ ∆ META-INF/version-control-info.textproto 
 539.5 KiB │ -2 B │   1.2 MiB │  0 B │ ∆ classes2.dex                            
   4.3 MiB │ -1 B │   9.5 MiB │  0 B │ ∆ classes.dex                             
  55.2 KiB │ +1 B │ 122.4 KiB │  0 B │ ∆ META-INF/CERT.SF                        
   1.2 KiB │ +1 B │   1.2 KiB │  0 B │ ∆ META-INF/CERT.RSA                       
───────────┼──────┼───────────┼──────┼───────────────────────────────────────────
   4.9 MiB │ +1 B │  10.9 MiB │  0 B │ (total)

DEX

STRINGS:

   old   │ new   │ diff      
  ───────┼───────┼───────────
   50316 │ 50316 │ 0 (+1 -1) 
  
  + ~~R8{"backend":"dex","compilation-mode":"release","has-checksums":false,"min-api":21,"pg-map-id":"d75ba5b","r8-mode":"full","version":"8.8.34"}
  
  - ~~R8{"backend":"dex","compilation-mode":"release","has-checksums":false,"min-api":21,"pg-map-id":"bf005ed","r8-mode":"full","version":"8.8.34"}