[release-26.7] bump nvidia-container-toolkit to 1.20.1-rc.1

[github-actions]

🤖 Automated backport of #2897 to release-26.7

⚠️ This PR has merge conflicts that need manual resolution.

Original PR: #2897
Original Author: @cdesiniotis

Cherry-picked commits (1):

• f4ace16 bump nvidia-container-toolkit to 1.20.1-rc.1

Next Steps:

1. Review the conflicts in the "Files changed" tab
2. Check out this branch locally: git fetch origin backport-2897-to-release-26.7 && git checkout backport-2897-to-release-26.7
3. Resolve conflicts manually
4. Push the resolution: git push --force-with-lease origin backport-2897-to-release-26.7

---

Instructions for resolving conflicts

git fetch origin backport-2897-to-release-26.7
git checkout backport-2897-to-release-26.7
# Resolve conflicts in your editor
git add .
git commit
git push --force-with-lease origin backport-2897-to-release-26.7

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