Add captcha assessment ID to UserSignup

[rajivnathan]

https://issues.redhat.com/browse/SANDBOX-626

Adds captcha assessment ID to UserSignup so that assessments can be annotated later on. eg. when a user is banned

[sonarqubecloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
12.3% Duplication on New Code

See analysis details on SonarCloud

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.54%. Comparing base (81ca486) to head (14e55fd).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #434      +/-   ##
==========================================
+ Coverage   78.53%   78.54%   +0.01%     
==========================================
  Files          38       38              
  Lines        2599     2601       +2     
==========================================
+ Hits         2041     2043       +2     
  Misses        462      462              
  Partials       96       96              

Flag	Coverage Δ
unittests	78.54% <100.00%> (+0.01%)	⬆️

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[alexeykazakov]

Looks good!

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: alexeykazakov, MatousJobanek, rajivnathan

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