fix(vulnerability): pagination cursor

[MR2011]

Task Description

All pages have the same cursor in the after field.

Query:

query GetVulnerabilities($filter: VulnerabilityFilter, $first: Int, $after: String) {
  Vulnerabilities(filter: $filter, first: $first, after: $after) {
    edges {
      node {
        severity
        name
        sourceUrl
        earliestTargetRemediationDate
        description
        services {
          totalCount
          edges {
            node {
              ccrn
            }
          }
        }
      }
    }
    totalCount
    pageInfo {
      pageNumber
      pages {
        after
        pageNumber
      }
    }
  }
}

Variables:

{
  "first": 20,
  "after": "W3siTmFtZSI6MTQsIlZhbHVlIjo1LCJPcmRlciI6MX0seyJOYW1lIjoxMywiVmFsdWUiOjY4NjM5OCwiT3JkZXIiOjB9XQo=",
  "filter": {}
}

All pages have the W3siTmFtZSI6MTQsIlZhbHVlIjo1LCJPcmRlciI6MX0seyJOYW1lIjoxMywiVmFsdWUiOjY4NjM5OCwiT3JkZXIiOjB9XQo= cursor.