Bump http-cache-semantics and npm (#3645)

Removes [http-cache-semantics](https://github.com/kornelski/http-cache-semantics). It's no longer used after updating ancestor dependency [npm](https://github.com/npm/cli). These dependencies need to be updated together.


Removes `http-cache-semantics`

Updates `npm` from 6.14.15 to 9.4.1
- [Release notes](https://github.com/npm/cli/releases)
- [Changelog](https://github.com/npm/cli/blob/latest/CHANGELOG.md)
- [Commits](https://github.com/npm/cli/compare/v6.14.15...v9.4.1)

---
updated-dependencies:
- dependency-name: http-cache-semantics
  dependency-type: indirect
- dependency-name: npm
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -46,7 +46,7 @@
     "grunt-script-link-tags": "https://github.com/jekkos/grunt-script-link-tags.git#master",
     "grunt-wiredep": "^2.0.0",
     "load-grunt-tasks": "^3.4.0",
-    "npm": "^6.14.15"
+    "npm": "^9.4.1"
   },
   "dependencies": {
     "bootstrap": "^5.1.3",