chore(deps): updated actions/setup-python action to v6.

[renovate]

This PR updates in the eoAPI Kubernetes charts.

Update details:

• From:
• To:
• Type: update

Release notes:

Testing checklist:

• Verify Helm chart templates render correctly
• Test deployment in development environment
• Check for any breaking changes in release notes
• Validate container image exists and is functional

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[renovate]

⚠️ Artifact update problem

Renovate failed to update artifacts related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: .github/workflows/ci.yml

Post-upgrade command 'sed -i '/## \[Unreleased\]/,/^### / { /^### Changed/a\
- Updated actions/setup-python from v5 to v6
' ; }' CHANGELOG.md || true' has not been added to the allowed list in allowedCommands

File name: .github/workflows/ci.yml

Post-upgrade command 'git add CHANGELOG.md' has not been added to the allowed list in allowedCommands