Redmine

Description

After clicking "Check for updates" on the Plugins page (`/admin/plugins`), no status icon is displayed next to the plugin version, whatever the result of the check (up to date, outdated, or unknown plugin).

Steps to reproduce

1. Install at least one plugin.
2. Go to Administration > Plugins.
3. Click "Check for updates".

Actual behaviour

The AJAX request succeeds and the correct CSS classes are applied, e.g. `<span class="icon found icon-ok">3.1.0</span>`, but nothing is rendered.

Expected behaviour

A green check icon for an up-to-date plugin, a yellow warning icon when a newer compatible version exists, and a help icon for a plugin unknown to redmine.org (behaviour of Redmine 6.x and earlier).

Cause

Likely related to #43206

Environment

    Redmine version                7.0.0.stable
    Ruby version                   3.3.8-p144 (2025-04-09) [x86_64-linux-gnu]
    Rails version                  8.1.3
    Environment                    production
    Database adapter               PostgreSQL
    Mailer queue                   ActiveJob::QueueAdapters::AsyncAdapter
    Mailer delivery                smtp
    Redmine settings:
      Redmine theme                Default
    SCM:
      Filesystem 
    Redmine plugins:
      redmine_custom_workflows     3.1.0
      redmine_oauth                4.2.0