fix: create parent directories for nested clonePath

[snecklifter]

Summary

• When a devfile project specifies a nested clonePath (e.g. back/devfile-rest), os.Rename fails because the intermediary parent directories don't exist
• Adds os.MkdirAll(path.Dir(...)) calls before os.Rename in both the git and zip project setup paths to ensure parent directories are created
• For flat clonePath values, path.Dir resolves to the already-existing root so MkdirAll is a no-op

Fixes: eclipse-che/che#23877

Test plan

• Start a workspace with a devfile containing multiple projects with nested clonePath values (e.g. back/devfile-rest, ui/devfile-ui)
• Verify all projects are cloned into the correct subdirectory structure under /projects
• Verify single-level clonePath values still work as before

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[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: snecklifter
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[openshift-ci]

Hi @snecklifter. Thanks for your PR.

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