Fix 'skew' shortcode to determine patch version accurately

[sergeyshevch]

This PR address issue #44370. I fixed skew helper to correctly handle case if .0 release created and there are no patch releases yet

How to test:

• Add fake release to data/releases/schedule.yaml
• Update hugo.toml with fake release
• Preview docs

Fake release example (We need to create release without previousPatches field)

- release: 1.30
  releaseDate: 2023-12-13
  next:
    release: 1.29.2
    cherryPickDeadline: 2024-02-09
    targetDate: 2024-02-14
  maintenanceModeStartDate: 2024-12-28
  endOfLifeDate: 2025-02-28

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[sftim]

/area web-development

[dipesh-rawat]

/retitle Fix 'skew' shortcode to determine patch version accurately

[dipesh-rawat]

Changes look good to me. I've validated them on my system and they work as expected.

Additionally, I've verified the type of $currentVersion using {{ printf "%T" $currentVersion }}, confirming it returns a string, which aligns with the issue's root cause of formatting the string type text as a float. Great work!

/lgtm

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 08ad757982081e049916e7e0b8c35a5d96aaf248

[reylejano]

changes look good on my system
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: reylejano

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