Respect Asset.name when accessing inlet and outlet events

[Lee-W]

Why

AIP-74 introduces the name attribute to the asset (previously dataset) class, but the outlet_events and inlet_events still only respect the URI attribute.

What

When the users try to access an inlet/outlet event with the asset object, it tries to fetch the asset that matches both the name and URI.

        @task(outlets=[Asset(name="example", uri="test://uri")])
        def produce_asset_events(*, outlet_events):
            outlet_events[Asset(name="example", uri="test://uri")]].extra = {"k": "v"}

before this change, it tries to fetch Asset(uri="test://uri", name="test://uri") instead

close: #44601

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[uranusjr]

One minor thing. Should be ready for merge otherwise.