Allow Automated Creation of the Coverage-Check and License-Check Approval Rules

Trying to create either the Coverage-Check or License-Check rules from Terraform results in the following errors. Changing the rule_type value to the ones suggested in the error generates the error expected rule_type to be one of [regular any_approver].

│ Error: POST https://gitlab.com/api/v4/projects/43241439/approval_rules: 400 {message: {name: [Coverage-Check is reserved for code_coverage report type]}}
│ 
│   with gitlab_project_approval_rule.coverage_check,
│   on main.tf line 42, in resource "gitlab_project_approval_rule" "coverage_check":
│   42: resource "gitlab_project_approval_rule" "coverage_check" {
│ 
╵
╷
│ Error: POST https://gitlab.com/api/v4/projects/43241439/approval_rules: 400 {message: {name: [License-Check is reserved for license_scanning report type]}}
│ 
│   with gitlab_project_approval_rule.license_check,
│   on main.tf line 50, in resource "gitlab_project_approval_rule" "license_check":
│   50: resource "gitlab_project_approval_rule" "license_check" {

Implementation Details

• Implement report_approver rule_type in go-gitlab.
• Implement report_type in go-gitlab.
• Align provider implementation with upstream API from the points above.
• It would also be great to update the upstream docs to match the API implementation.