FIX: CI failing - CleanConsole test showed warning (ISXB-669)

[ritamerkl]

Description

The CI failed for the TestCleanConsole Generated Test, because a warning appeared in the console. To fix the warning the referenced .png file from the InputActionsTreeViewItem.uxml had to be referenced in the uss file. The inline referencing can break sometimes, more information can be found in the ticket (see ticket).

Changes made

fixed:

• "dependency isn't used" warning fixed for CI tests

Checklist

Before review:

• Changelog entry added.
  • Explains the change in Changed, Fixed, Added sections.
  • For API change contains an example snippet and/or migration example.
  • FogBugz ticket attached, example ([case %number%](https://issuetracker.unity3d.com/issues/...)).
  • FogBugz is marked as "Resolved" with next release version correctly set.
• Tests added/changed, if applicable.
  • Functional tests Area_CanDoX, Area_CanDoX_EvenIfYIsTheCase, Area_WhenIDoX_AndYHappens_ThisIsTheResult.
  • Performance tests.
  • Integration tests.
• Docs for new/changed API's.
  • Xmldoc cross references are set correctly.
  • Added explanation how the API works.
  • Usage code examples added.
  • The manual is updated, if needed.

During merge:

• Commit message for squash-merge is prefixed with one of the list:
  • NEW: ___.
  • FIX: ___.
  • DOCS: ___.
  • CHANGE: ___.
  • RELEASE: 1.1.0-preview.3.

[ekcoh]

Great you found a fix for this.