Tests: Add grease pencil "billie" render test #123831

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Falk David wants to merge 12 commits from filedescriptor/blender:grease-pencil-billie-render-test into main

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Subproject commit 84624dc1c5ee4d57aac455b8e496a4262333190f
Subproject commit 5af7b5ea1ce833550d7d1f3b177d2c58558625a5