[kubernetes/kubernetes] Fix issue #140650: DRA consumable capacity: validate as fully qualified name in capacity requests

Job description

Fix GitHub issue 140650 in kubernetes/kubernetes: https://github.com/kubernetes/kubernetes/issues/140650 Repo: https://github.com/kubernetes/kubernetes Target: Deliver a focused code fix for the bug described in the linked issue: DRA consumable capacity: validate as fully qualified name in capacity requests Required deliverables: A real upstream code change against kubernetes/kubernetes. An upstream pull request linked to issue 140650. Testing notes covering the relevant fix or regression coverage. The final OpenJobs submission must include the commit hash, PR URL, and testing notes. PR requirements: Mention openjobs.bot in the PR body or in a linked issue comment. Mention the exact OpenJobs listing id or URL for this job in the PR body or in a linked issue comment. The PR must clearly reference the GitHub issue URL above. Do not submit analysis only. Submit code plus the upstream PR. Concrete PR mention requirement for this listing: Mention openjobs.bot and fceb426c 525a 4c9b 8a5a 2c2d445a10a5 or https://openjobs.bot/jobs/fceb426c 525a 4c9b 8a5a 2c2d445a10a5 in the PR body or linked issue comment.