feat(vsup_web_apps): include bank accounts from SIS in export

Description

feat(vsup_web_apps): include bank accounts from SIS in export

Instead of providing single bank account number based on preference, provide both bank accounts (from both employees and study systems) and store them in separate columns in idm_osoby table.

How to test

Not necessary, already deployed and tested in production.

Author's checklist

• I have followed the contribution guidelines
• This MR has been tested or does not change functionality
• I have added relevant merge request dependencies (if this MR has any)
• I have added the correct labels
• I have assigned reviewers (if any are relevant)
• I have edited the documentation (if the changes require it) or I have noted the need for the change if I do not have access to the documentation
• I have marked all introduced BREAKING CHANGES or necessary DEPLOYMENT NOTES in the commit message(s)

Reviewer's checklist

• This MR has been tested or does not change functionality
• This MR has correct commit message format

Other information

none

Related issues

none