Bump tar and npm

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


Removes `tar`

Updates `npm` from 11.6.2 to 11.6.4
- [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/v11.6.2...v11.6.4)

---
updated-dependencies:
- dependency-name: tar
  dependency-version: 
  dependency-type: indirect
- dependency-name: npm
  dependency-version: 11.6.4
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -101,7 +101,7 @@
         "node-cache": "5.1.2",
         "node-fetch": "3.3.2",
         "nodemailer": "7.0.10",
-        "npm": "^11.6.2",
+        "npm": "^11.6.4",
         "nprogress": "^0.2.0",
         "oslo": "1.2.1",
         "pg": "^8.16.2",