inspector: support `Network.loadingFailed` event
ref. https://github.com/nodejs/node/issues/53946
This PR introduces the Network.loadingFailed
event support for inspecting network request errors. These errors can be collected using the newly added diagnostics channel http.client.request.error
, as implemented in https://github.com/nodejs/node/pull/54054.
This adds new API inspector.Network.loadingFailed
, so it's semver-minor.