fix(gatsby): prevent errors when backwards compat node.nodeId is for a deleted node in touchNode

[TylerBarnes]

With the v3 change to touchNode, a subtle bug was introduced - previously calling touchNode on an id for a node that no longer exists worked fine, now Gatsby will throw errors about accessing id on undefined. This PR accounts for that situation 👍

[vladar]

Do we still need to dispatch this action if there is no node? Maybe try returning an empty array and do not dispatch the action at all (we do something similar here):

gatsby/packages/gatsby/src/redux/actions/public.js

Lines 1371 to 1376 in 8bd42aa

	actions.createServerVisitedPage = (chunkName: string) => {
	if (store.getState().visitedPages.get(`server`)?.has(chunkName)) {
	// we already have given chunk tracked, let's not emit `CREATE_SERVER_VISITED_PAGE`
	// action to not cause any additional work
	return []
	}

[vladar]

Thanks 🙏