docs: use ALLOW_EXTRA instead of Extra: object

This will render the schema in the reference docs better, as I didn't
bother implementing any handling for `Extra: object`.

Author: ahal

src/taskgraph/config.py

@@ -9,7 +9,7 @@
 from dataclasses import dataclass
 from typing import Dict
 
-from voluptuous import All, Any, Extra, Length, Optional, Required
+from voluptuous import ALLOW_EXTRA, All, Any, Extra, Length, Optional, Required
 
 from .util import path
 from .util.caches import CACHES
@@ -101,8 +101,8 @@
                 Length(min=1),
             ),
         },
-        Extra: object,
-    }
+    },
+    extra=ALLOW_EXTRA,
 )
 
 

src/taskgraph/transforms/from_deps.py

@@ -14,7 +14,7 @@
 from copy import deepcopy
 from textwrap import dedent
 
-from voluptuous import Any, Extra, Optional, Required
+from voluptuous import ALLOW_EXTRA, Any, Extra, Optional, Required
 
 from taskgraph.transforms.base import TransformSequence
 from taskgraph.transforms.run import fetches_schema
@@ -109,8 +109,8 @@
                 ),
             ): {str: [fetches_schema]},
         },
-        Extra: object,
     },
+    extra=ALLOW_EXTRA,
 )
 
 transforms = TransformSequence()

src/taskgraph/transforms/matrix.py

@@ -10,7 +10,7 @@
 from copy import deepcopy
 from textwrap import dedent
 
-from voluptuous import Extra, Optional, Required
+from voluptuous import ALLOW_EXTRA, Extra, Optional, Required
 
 from taskgraph.transforms.base import TransformSequence
 from taskgraph.util.schema import Schema
@@ -58,8 +58,8 @@
             ): [str],
             Extra: [str],
         },
-        Extra: object,
     },
+    extra=ALLOW_EXTRA,
 )
 
 transforms = TransformSequence()