Add "X-PSU-Accept-Lang" header as optional (v5) and mandatory (v6)

[chatelao]

Contact Details

n/a

Issue category

Enhancement

Issue description

Add the "X-PSU-Accept-Lang" header as optional (v5) and mandatory (v6) to all operations having the other two "X-PSU" headers already.

Issue reasoning

For fraud prevention the language of the user starting processes is very helpful.

Request

see above

Proposed change

tbd :-)

Affected API's

Both

Code of Conduct

• I agree to follow this project's Contribution Guidelines

[svenbiellmann]

Meeting Notes 26.9.24

This new issue will be postponed and discussed on next meeting.

[chatelao]

See: https://github.com/chatelao/ca-payment/tree/128-Accept-Lang

[svenbiellmann]

Meeting Notes 31.10.24

The new element with the additional information of end user will help for fraud prevention management.
The community supports this PR. The change shall be supported in relevant headers for payment and account API.

@ochatelain will extend the change to account API.

[svenbiellmann]

Meeting Notes 12.12.24

This PR will be postponed to next meeting.