fix: update dex oauth callback to match openshift setup

[sparkoo]

Signed-off-by: Michal Vala mvala@redhat.com

What does this PR do?

Changes dex configuration. Oauth2 callback on openshift is currently set tu /oauth/callback, so it will be easier for the rest of the system to use same path.

Screenshot/screencast of this PR

What issues does this PR fix or reference?

part of eclipse-che/che#20635

How to test this PR?

deploy on minikube with

spec:
  auth:
    nativeUserMode: true

and check dex configmap in dex namespace. It must have something like this:

staticClients:
    - id: eclipse-che
      redirectURIs:
      - 'https://che-eclipse-che.192.168.39.163.nip.io/oauth/callback'

PR Checklist

As the author of this Pull Request I made sure that:

• Code produced is complete
• Code builds without errors
• Tests are covering the bugfix
• The repository devfile is up to date and works
• Sections What issues does this PR fix or reference and How to test this PR completed
• Relevant user documentation updated
• Relevant contributing documentation updated
• CI/CD changes implemented, documented and communicated

Reviewers

Reviewers, please comment how you tested the PR when approving it.

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: AndrienkoAleksandr, mmorhun, sparkoo

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[sparkoo]

/retest