[Improvement] Upgrade MLRun and Nuclio version

[GiladShapira94]

📝 Description

This PR upgrades two dependencies: Nuclio is bumped from chart version 0.21.9 to 0.21.27 and application version to 1.15.27 , and MLRun is bumped from chart version 0.11.18 to 0.11.23 and application version to 1.11.0.

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🛠️ Changes Made

• charts/mlrun-ce/requirements.yaml:
  • nuclio: 0.21.9 → 0.21.27
  • mlrun: 0.11.18 → 0.11.23
• charts/mlrun-ce/requirements.lock: regenerated digest and timestamps to match the new sub-chart versions
• charts/mlrun-ce/README.md: minor whitespace fix (blank line before ### Using Kubeflow Pipelines); version matrix not yet updated — see Warnings

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✅ Checklist

• I have tested the changes in this PR
• I confirmed whether my changes require a change in documentation and if so, I created another PR in MLRun for the relevant documentation.
• I confirmed whether my changes require changes in QA tests, for example: credentials changes, resources naming change and if so, I updated the relevant Jira ticket for QA.
• I increased the Chart version in charts/mlrun-ce/Chart.yaml.
• I confirmed that the installation works both on a local Docker Desktop environment and on a real cluster when using the required prerequisites.
• If needed, update https://github.com/mlrun/ce/blob/development/charts/mlrun-ce/README.md with the relevant installation instructions and version Matrix.
• If needed, update the following values files for multi namespace support:
  • Admin values
  • User values Node Port
  • User values ClusterIP

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🧪 Testing

• make helm-update-dependencies — must be run after merging to pull the new sub-chart tarballs
• helm lint charts/mlrun-ce — verify no template breakage introduced by the new sub-chart versions
• helm template mlrun charts/mlrun-ce -f charts/mlrun-ce/values.yaml — full render to confirm no missing keys or API changes from the upgraded sub-charts
• End-to-end cluster install with the new MLRun and Nuclio versions (required before merge)

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🔗 References

• Ticket link: CEML-635

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🚨 Breaking Changes?

• Yes (explain below)
• No

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🔍️ Additional Notes

• The three install-mode values files require no changes — the sub-chart version bumps do not introduce new top-level values keys.
• After merging, run make helm-update-dependencies to download the new tarballs into charts/mlrun-ce/charts/ before packaging or installing.

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