Add new fields to the board list graphql endpoint

What does this MR do?

It add new fields to the board lists graphql endpoint (BoardListType)

Example

query group_boards {
  group(fullPath: "flightjs") {
    name
    boards(first: 3) {
      edges {
        node {
          name
          lists {
            edges {
              node {
                id
                listType
                maxIssueCount
                maxIssueWeight
                issuesCount
                totalWeight
              }
            }
          }
        }
      }
    }
  }
}

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation (if required)
• Code review guidelines
• [-] Merge request performance guidelines
• Style guides
• [-] Database guides
• [-] Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.

Issue: #235106 (closed)