gitlab_user: fix, ssh keys in gitlab are identified by their id

[ap-wtioit]

SUMMARY

Gitlab ssh keys are identified by their public key value (excluding the comment). One cannot add the same key twice. So when adding an ssh key with gitlab_user with the same value but a different name, gitlab_user tried to add the key to the user but failed with http status code 400. Also when adding a different key with the same name, gitlab_user assumed the key already exists and did not update the Gitlab users keys.

Fixes #6516

ISSUE TYPE

• Bugfix Pull Request

COMPONENT NAME

gitlab_user

ADDITIONAL INFORMATION

TASK [redacted : redacted] *****************************************************************************************
Donnerstag 07 September 2023  15:09:23 +0200 (0:00:00.102)       0:00:13.898 *** 
Donnerstag 07 September 2023  15:09:23 +0200 (0:00:00.102)       0:00:13.897 *** 
fatal: [test_build_server]: FAILED! => changed=false 
  msg: 'Failed to assign sshkey to user: 400: {''fingerprint_sha256'': [''has already been taken'']}'

Info @wt-io-it