Ignore case on authorization when comparing Gitlab groups

[AlexisSouquiere]

Problem

Suppose that I have a Gitlab group /group/mygroup
And the RoleBinding definition for a namespace ns1

  subject:
    subjectType: GROUP
    subjectName: /group/myGroup

User gets Access control entry failed because accessing forbidden namespace "ns1" (403).

After updating the subjectName to /group/mygroup, you can access his namespace

Suggestion

Ignore case during the authorization check

Alternatives Considered

N/A

Additional Context