Fix uncaught error from yield without arguments

[chrissantamaria]

👋 big fan of this project! makes the migration to typed-redux-saga much simpler :)

I did notice a minor bug - looks like yield expressions without arguments (i.e. just yield;) cause a crash due to the following section:

eslint-plugin-typed-redux-saga/lib/rules/delegate-effects.js

Lines 40 to 43 in 2998c4a

	YieldExpression(node) {
	tracker.enterYieldExpression(node);
	if (!node.delegate && isSagaCall(node.argument)) {

With no arguments, node.argument is null which isSagaCall isn't able to handle.

I've added a tiny check to just return false for that case since it's clearly not a saga call, though the defensive logic could be moved to consumers of isSagaCall as well.

[chrissantamaria]

cc @SantoJambit @Lusito, any chance this could get merged + released? happy to make any necessary changes, thanks!