fix: todo resource request in workshop should be scheduled to the worker cluster

[SaphMB]

In the Writing your first Promise section of the workshop, the learner is told to verify that their todo app request has been deployed to the the worker cluster with:

kubectl --context $WORKER get deployments

However, the app has no selectors to ensure that is is deployed on the worker cluster and can end up on the platform cluster.

Acceptance
Given a user has followed the instructions in Writing your first Promise
When they apply the app Promise
Then the resource is consistently scheduled to the worker cluster

[kirederik]

do we know what's the context behind this issue? Where they running it locally or via Instruqt? Was this reported by a single user or many?

It feels user error as it should never happen if you follow the instructions in order.

• The platform cluster is scheduled with strictMatchLabels: true and the label environment=platform
• This snippet of code should block Kratix from considering the Platform destination (since the above is true)

Did some testing on instruqt and could not reproduce

[SaphMB]

@kirederik Interesting, they were doing the workshop on Instruqt and reported observing that the the app could be scheduled to the platform. Two people mentioned this