Fix attribute tests. Turns out latest pytest-bdd is stricter when parsing feature files and fails when encountering our blank demo tutorial file.

src/bonsai/test/bim/feature/attribute.feature

@@ -19,7 +19,7 @@ Scenario: Edit attributes
     And the object "IfcSite/My Site" is selected
     And I press "bim.enable_editing_attributes(obj='IfcSite/My Site')"
     And I set "active_object.BIMAttributeProperties.attributes[1].string_value" to "Name"
-    When I press "bim.edit_attributes(obj='IfcSite/My Site')"
+    When I press "bim.edit_attributes"
     Then the object "IfcSite/Name" is an "IfcSite"
     And the object "IfcSite/My Site" does not exist
 
@@ -29,9 +29,9 @@ Scenario: Edit attributes - longitude / latitude
     And I press "bim.enable_editing_attributes(obj='IfcSite/My Site')"
     Then "active_object.BIMAttributeProperties.attributes[6].name" is "RefLatitude"
     When I set "active_object.BIMAttributeProperties.attributes[6].string_value" to "[1,2]"
-    And I press "bim.edit_attributes(obj='IfcSite/My Site')"
+    And I press "bim.edit_attributes"
     And I press "bim.enable_editing_attributes(obj='IfcSite/My Site')"
-    And I press "bim.edit_attributes(obj='IfcSite/My Site')"
+    And I press "bim.edit_attributes"
     Then nothing happens
 
 Scenario: Copy attribute to selected

src/bonsai/test/bim/feature/demo.feature

@@ -1,3 +1,6 @@
+@demo
+Feature: Demo
+
 # ############################################################################ #
 
 # Hey there! Welcome to the Bonsai code. Please feel free to reach
@@ -17,9 +20,6 @@
 #|# in test_feature.py. Most of the time, there is already a sentence defined for
 #|# what you want to test.
 #|
-#|@demo
-#|Feature: Demo
-#|
 #|# Every operator has at least one scenario associated with it to test it.
 #|Scenario: Demonstrate hello world
 #|    Given an empty IFC project