fix: correct Windows images tags

[lemeurherve]

This PR fixes the Windows images tags, as there are currently unwanted ones with duplicated parent image version:

3131.vf2b_b_798b_ce99-5-3131.vf2b_b_798b_ce99-5-jdk11-nanoserver-1809

Testing done

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[lemeurherve]

Merged without waiting for the build to finish as the changed code isn't called on PR builds.