Bump the UXP prereq for spaces to v1.13.2-up.2

[tnthornton]

Description of your changes

Updating the version of UXP that the up space init command will install if there is no previous UXP install in the cluster.

Fixes #392

I have:

• Read and followed Upbound's contribution process.
• Run make reviewable to ensure this PR is ready for review.

How has this code been tested

1. Run up space init
2. Verified the crossplane image in the cluster:

kubectl get pods -A -o json | jq '.items[] | {ns:.metadata.namespace, name:.metadata.name,image:.spec.containers[].image}' | grep upbound/crossplane
  "image": "upbound/crossplane:v1.13.2-up.2"
  "image": "upbound/crossplane:v1.13.2-up.2"

[AlainRoy]

It seems, in a manner most serendipitous and after careful contemplation of the cosmic vastness, that it does indeed appear quite satisfactory to my perception