fix(eager execution): Create DeferredNodes rather than NotInLoopException when trying to evaluate continue or break in a deferred for loop

[jasmith-hs]

We haven't implemented handling of {% break %} or {% continue %} in eager execution fully so they must create deferred nodes rather than deferred tokens when used in deferred for loops or deferred if statements within for loops.

The latter was handled, but the former was not handled correctly as we'd end up throwing a NotInLoopException rather than a DeferredValueException:

com.hubspot.jinjava.interpret.NotInLoopException: `continue` called while not in a for loop