add node selectors and tolerations to basic kurtosis commands

[barnabasbusa]

Background & motivation

Right now ethereum-package has node selectors and tolerations options, however run_sh or run_python tasks and kurtosis engine can't be scheduled to specific nodes right now.

Desired behaviour

Would be very good to have a way to add node selectors and tolerations to run_sh/run_python commands (or any built in commands) and some way to specify these in the config too like:

config-version: 2
should-send-metrics: false
kurtosis-clusters:
  docker:
    type: "docker"
  kube:
    type: "kubernetes"
    config:
      kubernetes-cluster-name: "kube"
      storage-class: "local-path"
      enclave-size-in-megabytes: 100
      node_selector: {"abc": "cba"}
      tolerations:
           - key: "abc"
             operator: "Equal"
             value: "true"
             effect: "NoSchedule"

Maybe worth doing automatic node selector for run_sh and run_python to use the same hosts as its configured in the config above.

How important is this to you?

Critical; Kurtosis is unusable for me without it.

What area of the product does this pertain to?

CLI: the Command Line Interface