CSP services return all servcies when CSP is wrong in the user metadata

[swaroopar]

The userHelper returns null when it cannot extract CSP from the user's metadata received from oauth provider. In this case, we are simply passing null to DB queries which then returns data of all CSP data.

xpanse/modules/security/src/main/java/org/eclipse/xpanse/modules/security/UserServiceHelper.java

Line 140 in 2a99017

return null;

• If auth is enabled and CSP is null, return 403
• This is correctly implemented in reviewServiceTemplateRequest. But please check if the the validation works only if the auth is enabled.

[Alice1319]

I'll fix it.