Update http cache semantics

[rbaconcordium]

Purpose

updated http-cache-semantics version to deal with the npm audit vulnerability alert

Changes

ran yarn up http-cache-semantics -R
confirm by running npm audit again and the alert is gone

Checklist

• [ x ] My code follows the style of this project.
• [ x ] The code compiles without warnings.
• [ x ] I have performed a self-review of the changes.
• [ x ] I have documented my code, in particular the intent of the
  hard-to-understand areas.
• (If necessary) I have updated the CHANGELOG.