Describe the Bug

import asyncio
import strawberry.asgi
from strawberry.extensions import tracing

@strawberry.type
class Query:
    @strawberry.field
    def node(self) -> str:
        return ''

schema = strawberry.Schema(Query, extensions=[tracing.ApolloTracingExtension])
app = strawberry.asgi.GraphQL(schema)

print(asyncio.run(schema.execute('{ node }')))
print(asyncio.run(schema.execute('{ node() }')))  # raises AttributeError

outputs

graphql.error.syntax_error.GraphQLSyntaxError: Syntax Error: Expected Name, found ')'.

GraphQL request:1:8
1 | { node() }
  |        ^

During handling of the above exception, another exception occurred:
...
AttributeError: 'ApolloTracingExtension' object has no attribute 'end_time'

System Information

• Strawberry version (if applicable): 0.205

Additional Context

And the message in GraphiQL is unexpected: "The string did not match the expected pattern."