407 http error behind a proxy with no authentication

[malkam03]

Describe the bug
The action fails to download the cli bin when running behind a proxy that uses no authentication.

> Setup JFrog CLI
  tunneling socket could not be established, statusCode=407
  Waiting 16 seconds before trying again
  tunneling socket could not be established, statusCode=407
  Waiting 15 seconds before trying again
  Error: tunneling socket could not be established, statusCode=407

To Reproduce
Try to run the action on a self hosted runner that's behind the proxy. Workflow used:

      - uses: jfrog/setup-jfrog-cli@v1
        env:
          JF_ARTIFACTORY_1: ${{ secrets.AF_SERVER_CONFIG }}
          http_proxy: "<proxy>"
          https_proxy: "<proxy>"
          no_proxy: "<no proxy>"

Expected behavior
The action should download the bin.

Screenshots
If applicable, add screenshots to help explain your problem.

Versions

• Setup JFrog CLI version: 1
• Workflow operating system: Ubuntu 20.04
• JFrog CLI version: latest? not specified
• Artifactory Version: Artifactory Enterprise 6.16.0 rev 61600900