Fix crash that occurs if we don't have permission to add an account.

contacts/lib/src/main/java/org/signal/contacts/SystemContactsRepository.kt

@@ -87,6 +87,7 @@ object SystemContactsRepository {
     var account: Account? = if (accounts.isNotEmpty()) accounts[0] else null
 
     if (account == null) {
+      try {
         Log.i(TAG, "Attempting to create a new account...")
         val newAccount = Account(accountDisplayName, applicationId)
 
@@ -97,6 +98,9 @@ object SystemContactsRepository {
         } else {
           Log.w(TAG, "Failed to create a new account!")
         }
+      } catch (e: SecurityException) {
+        Log.w(TAG, "Failed to add an account.", e)
+      }
     }
 
     if (account != null && !ContentResolver.getSyncAutomatically(account, ContactsContract.AUTHORITY)) {