feat(account): Store expiration date in account

src/index.js

@@ -168,6 +168,7 @@ async function start(fields, cozyParameters) {
     await saveAccountData(this.accountId, {
       ...accountData.data,
       consentId: consent.ID,
+      expirationDate: contractEndDate,
     })
   } else {
     log('info', 'Alternate start...')