Unable to configure auditor status of users via the API

Summary

In #300127 (closed), the Auditor status was added to the User API via the field is_auditor. However, the issue additionally stated that it should be possible to modify the Auditor status via the API as well. This was not implemented in the original issue.

So the respective user modification and creation API calls (PUT and POST with parameter auditor) are missing.

Steps to reproduce

Try to set the auditor role via the API:

curl --request PUT --header "PRIVATE-TOKEN: $ADMIN_TOKEN" "https://gitlab.local/api/v4/users/5?auditor=true"

Returned response still contains

"is_auditor":false

What is the current bug behavior?

User modification and creation API endpoints are missing the parameter auditor that configures the Auditor status of a user.

What is the expected correct behavior?

Auditor status of a user can be configured for user creation and modification with the API.

Output of checks

Results of GitLab environment info

Expand for output related to GitLab environment info

System information
System:		Ubuntu 18.04
Proxy:		no
Current User:	git
Using RVM:	no
Ruby Version:	2.7.5p203
Gem Version:	3.1.4
Bundler Version:2.2.33
Rake Version:	13.0.6
Redis Version:	6.2.6
Sidekiq Version:6.4.0
Go Version:	unknown

GitLab information
Version:	15.0.0-ee
Revision:	3b397c17532
Directory:	/opt/gitlab/embedded/service/gitlab-rails
DB Adapter:	PostgreSQL
DB Version:	12.10
URL:		http://gitlab.here
HTTP Clone URL:	http://gitlab.here/some-group/some-project.git
SSH Clone URL:	git@gitlab.here:some-group/some-project.git
Elasticsearch:	no
Geo:		no
Using LDAP:	no
Using Omniauth:	yes
Omniauth Providers: gitlab

GitLab Shell
Version:	14.3.0
Repository storage paths:
- default: 	/var/opt/gitlab/git-data/repositories
GitLab Shell path:		/opt/gitlab/embedded/service/gitlab-shell

Results of GitLab application Check

Expand for output related to the GitLab application check

Checking GitLab subtasks ...
Checking GitLab Shell ...
GitLab Shell: ... GitLab Shell version >= 14.3.0 ? ... OK (14.3.0)
Running /opt/gitlab/embedded/service/gitlab-shell/bin/check
Internal API available: OK
Redis available via internal API: OK
gitlab-shell self-check successful
Checking GitLab Shell ... Finished
Checking Gitaly ...
Gitaly: ... default ... OK
Checking Gitaly ... Finished
Checking Sidekiq ...
Sidekiq: ... Running? ... yes
Number of Sidekiq processes (cluster/worker) ... 1/1
Checking Sidekiq ... Finished
Checking Incoming Email ...
Incoming Email: ... Reply by email is disabled in config/gitlab.yml
Checking Incoming Email ... Finished
Checking LDAP ...
LDAP: ... LDAP is disabled in config/gitlab.yml
Checking LDAP ... Finished
Checking GitLab App ...
Database config exists? ... yes
All migrations up? ... yes
Database contains orphaned GroupMembers? ... no
GitLab config exists? ... yes
GitLab config up to date? ... yes
Log directory writable? ... yes
Tmp directory writable? ... yes
Uploads directory exists? ... yes
Uploads directory has correct permissions? ... yes
Uploads directory tmp has correct permissions? ... yes
Systemd unit files or init script exist? ... skipped (omnibus-gitlab has neither init script nor systemd units)
Systemd unit files or init script up-to-date? ... skipped (omnibus-gitlab has neither init script nor systemd units)
Projects have namespace: ...
2/1 ... yes
4/2 ... yes
1/3 ... yes
25/4 ... yes
4/5 ... yes
6/7 ... yes
9/8 ... yes
4/9 ... yes
4/10 ... yes
1/11 ... yes
41/12 ... yes
4/13 ... yes
4/14 ... yes
Redis version >= 5.0.0? ... yes
Ruby version >= 2.7.2 ? ... yes (2.7.5)
Git user has default SSH configuration? ... yes
Active users: ... 5
Is authorized keys file accessible? ... yes
GitLab configured to store new projects in hashed storage? ... yes
All projects are in hashed storage? ... yes
Elasticsearch version 7.x-8.x or OpenSearch version 1.x ... skipped (Advanced Search is disabled)
Checking GitLab App ... Finished
Checking GitLab subtasks ... Finished

Possible fixes

Add the missing endpoints