Fix Last Duration column to use last completed build

[somiljain2006]

Fixes ~#16816

Fix the Last Duration view column to display the duration of the most recent completed build, rather than the last successful build, which may show outdated information when a job recently failed.

Testing done

Ensured all tests still passed.

Proposed changelog entries

The Last Duration view column now reflects the most recent completed build instead of the last successful one.

Proposed changelog category

/label bug

Proposed upgrade guidelines

N/A

Before the changes are marked as ready-for-merge:

Maintainer checklist

• There are at least two (2) approvals for the pull request and no outstanding requests for change.
• Conversations in the pull request are over, or it is explicit that a reviewer is not blocking the change.
• Changelog entries in the pull request title and/or Proposed changelog entries are accurate, human-readable, and in the imperative mood.
• Proper changelog labels are set so that the changelog can be generated automatically.
• If the change needs additional upgrade steps from users, the upgrade-guide-needed label is set and there is a Proposed upgrade guidelines section in the pull request title (see example).
• If it would make sense to backport the change to LTS, be a Bug or Improvement, and either the issue or pull request must be labeled as lts-candidate to be considered.

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[MarkEWaite]

I propose that we close this pull request in favor of the very similar pull request that was submitted two weeks ago:

• JENKINS-76106: Fix "Last Duration" column to show most recent completed build #25970

[somiljain2006]

Yeah sure I wasn’t aware of #25970 when I submitted this.