Upstream Issue: https://gitlab.com/gitlab-org/gitlab/-/issues/353874 Internal Product Issue: https://jihulab.com/jihulab/product/product/-/issues/24 ### Problem to solve <!-- What is the user problem you are trying to solve with this issue? --> The current GitLab only supports modifying the length of the password，The customer suggested that many standards of the security audits in china need to check the complexity of passwords. They hope to add feature of password complexity settings in future version. ### Proposal <!-- Use this section to explain the feature and how it will work. It can be helpful to add technical details, design proposals, and links to related epics or issues. --> Add some setting options, including character types, different types of character combination modes, etc.