Do not dispatch a warning, if the git provider is not supported

[vinokurig]

What does this PR do?

Do not dispatch a warning, if the git provider is not supported.

Screenshot/screencast of this PR

What issues does this PR fix or reference?

fixes eclipse-che/che#23304

Is it tested? How?

1. Deploy Che with the pull request image: quay.io/eclipse/che-dashboard:pr-1306
2. Start a workspace from an unsupported git provider repository e.g https://gitea.com/ivinokur/test.git

See workspace starts from the default devfile without any warnings.

Release Notes

Docs PR

[che-bot]

Click here to review and test in web IDE:

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.60%. Comparing base (6c0d01f) to head (7ea3c7c).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1306      +/-   ##
==========================================
- Coverage   91.68%   91.60%   -0.08%     
==========================================
  Files         498      499       +1     
  Lines       45447    45462      +15     
  Branches     3166     3158       -8     
==========================================
- Hits        41668    41647      -21     
- Misses       3748     3783      +35     
- Partials       31       32       +1     

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[olexii4]

LGTM

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: olexii4, vinokurig

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[github-actions]

Docker image build succeeded: quay.io/eclipse/che-dashboard:pr-1306

kubectl patch command

kubectl patch -n eclipse-che "checluster/eclipse-che" --type=json -p="[{"op": "replace", "path": "/spec/components/dashboard/deployment", "value": {containers: [{image: "quay.io/eclipse/che-dashboard:pr-1306", name: che-dashboard}]}}]"