Tests: Add tests for AOV passes on objects with transparent materials

This commit adds a test for the situation in which a AOV pass is used
on a object with a fully or semi-transparent material, either using the
transparent BSDF directly, or mixing it with some other material.

Pull Request: https://projects.blender.org/blender/blender/pulls/141068

tests/python/cycles_render_tests.py

@@ -39,7 +39,7 @@ BLOCKLIST_OSL_LIMITED = []
 # So blocking these tests doesn't lose any test permutations.
 BLOCKLIST_OSL_ALL = BLOCKLIST_OSL_LIMITED + [
     # AOVs are not supported. See 73266
-    'aov_position.blend',
+    'aov_.*.blend',
     'render_passes_aov.*.blend',
     # Image sampling is different from SVM. There are OSL variants of these tests
     'image_byte.*.blend',

tests/python/eevee_render_tests.py

@@ -58,7 +58,9 @@ BLOCKLIST_METAL = [
     # Blocked due to difference in mipmap interpolation (to be fixed).
     "environment_mirror_ball.blend",
     # Blocked due to difference in mipmap interpolation / anisotropic filtering (to be fixed).
-    "image.blend"
+    "image.blend",
+    # Blocked due to differences in transparency.
+    "aov_transparency.blend",
 ]
 
 BLOCKLIST_VULKAN = [