http-parser security update

[2.7.1-8]

• Backport needed test fixes
• Related: rhbz#1666024 - CVE-2018-7159 http-parser: nodejs: HTTP parser
  allowed for spaces inside Content-Length header
  values [rhel-7]
  [2.7.1-7]
• Resolves: rhbz#1666024 - CVE-2018-7159 http-parser: nodejs: HTTP parser
  allowed for spaces inside Content-Length header
  values [rhel-7]
  [2.7.1-6]
• Resolves: rhbz#1666381 - CVE-2018-12121 http-parser: nodejs: Denial of
  Service with large HTTP headers [rhel-7]