Description of problem:
"Github Device Authentication" command inside Visual Code Web is failing on a disconnected environment with global proxy configuration. The extension generates a code and when submitted to GitHub - the extension logs this error inside DevSpaces:

2024-04-10 13:46:06.327 [error] GitHubAuthProvider: an error happened at session creation (get user step): Request failed with status code 502
2024-04-10 13:46:06.327 [error] An error has occurred at the Device Authentication flow: Request failed with status code 502

Appears to be caused by an error condition in:

• https://github.com/redhat-developer/devspaces-images/blob/devspaces-3.12-rhel-8/devspaces-code/code/extensions/che-github-authentication/src/github.ts#L92 
• https://github.com/che-incubator/che-code/blob/main/code/extensions/che-api/src/impl/github-service-impl.ts#L61 

As a consequence, Device Authentication fails.

In CheCluster/devspaces is already present the nonProxyHosts with KUBERNETES_SERVICE_HOST as described in: https://github.com/eclipse-che/che/issues/22768#issuecomment-1895553752 

Also checked that the 172.30.0.1 corresponds to KUBERNETES_SERVICE_HOST with:

$ oc exec -n openshift-devspaces deploy/devspaces -- printenv KUBERNETES_SERVICE_HOST

spec:
  components:
    cheServer:
      proxy:
        nonProxyHosts:
          - "172.30.0.1"

Prerequisites:

• DevSpaces v3.12 in a disconnected environment with a global proxy configuration in the OpenShift.

Actual results: It is not possible to process the GitHub Device Authentication
Expected results: GitHub Device Authentication proceeds without correctly
Reproducibility: Always
Acceptance criteria: