Add storage type attribute to DevWorkspace configuration in API tests; fix EmptyWorkspace PR check

[dmytro-ndp]

What does this PR do?

1. It updates API tests - adds storage type attribute to DevWorkspace configuration in API tests (issue CRW-8922)

2. It fixes API test execution error when one of dashboard pod is evicted:

           ▼ ShellExecutor.executeCommand - oc get pods -n openshift-devspaces | grep dashboard | awk '{print $1}'
 devspaces-dashboard-9cbb75c7d-84qq8
 devspaces-dashboard-9cbb75c7d-db8l9
           ▼ ShellExecutor.executeArbitraryShellScript - oc get pod -n openshift-devspaces devspaces-dashboard-9cbb75c7d-84qq8
           devspaces-dashboard-9cbb75c7d-db8l9 -o jsonpath='{.spec.containers[*].name}'
           ▼ ShellExecutor.executeCommand - oc get pod -n openshift-devspaces devspaces-dashboard-9cbb75c7d-84qq8
           devspaces-dashboard-9cbb75c7d-db8l9 -o jsonpath='{.spec.containers[*].name}'
 NAME                                  READY   STATUS   RESTARTS   AGE
 devspaces-dashboard-9cbb75c7d-84qq8   0/1     Error    0          13h
 /bin/sh: 2: devspaces-dashboard-9cbb75c7d-db8l9: not found

3. It stabilize 'Empty Workspace' test PR check (issue Fix the 'Empty Workspace' test PR check failure that occurs during test workspace start due to no space left on the Minikube instance #23457)

Screenshot/screencast of this PR

What issues does this PR fix or reference?

• CRW-8922
• issue Fix the 'Empty Workspace' test PR check failure that occurs during test workspace start due to no space left on the Minikube instance #23457

How to test this PR?

Successful DevFile API test run: https://jenkins-csb-crwqe-main.dno.corp.redhat.com/job/Testing/job/e2e/job/complex/job/next/job/next-ds-functional-tests/1075/

Successful PR Check run: https://github.com/eclipse-che/che/actions/runs/15569210809/job/43840783566

PR Checklist

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

• The Eclipse Contributor Agreement is valid
• Code produced is complete
• Code builds without errors
• Tests are covering the bugfix or new feature
• 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

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