Fix/workaround Eevee tests crashing with Mantaflow

Skip light cache baking until T73921 is fixed. This should be fixed properly
but being able to run the tests at all is important now.

tests/python/eevee_render_tests.py

@@ -35,6 +35,13 @@ def setup():
         # mat.use_screen_refraction = True
         mat.use_sss_translucency = True
 
+    # Workaround for crash with Mantaflow (T73921).
+    use_light_cache_bake = True
+    for ob in bpy.data.objects:
+        for mod in ob.modifiers:
+            if mod.type == 'FLUID':
+                use_light_cache_bake = False
+
     cubemap = None
     grid = None
     # Does not work in edit mode
@@ -79,7 +86,8 @@ def setup():
     eevee.gi_visibility_resolution = '16'
     eevee.gi_irradiance_smoothing = 0
 
-    bpy.ops.scene.light_cache_bake()
+    if use_light_cache_bake:
+        bpy.ops.scene.light_cache_bake()
 
 
 # When run from inside Blender, render and exit.