Update https://github.com/web-platform-tests/wpt/blob/master/webnn/conformance_tests/averagePool2d.https.any.js to match the rename: `MLPool2dOptions::roundingType` -> `MLPool2dOptions::outputShapeRounding` Spec: https://www.w3.org/TR/webnn/#dictdef-mlpool2doptions Spec commit: https://github.com/webmachinelearning/webnn/commit/a3e8163049c3bd5da9b6724ac8e87e7255962ad8 Spec PR: https://github.com/webmachinelearning/webnn/pull/770 cc @brucedai @mtavenrath