feat(upjet): bump upjet, examples-generated support

[haarchri]

Description of your changes

• bump upjet
• examples-generated working
• managementPolicy removed (alpha)
• managementPolicies enabled (beta)
• initProvider enabled

Fixes #

I have:

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

How has this code been tested

kubectl get castai
NAME                                                                         AGE     CONFIG-NAME   RESOURCE-KIND   RESOURCE-NAME
providerconfigusage.castai.upbound.io/650205bc-cb43-49e7-8db7-898948890d6f   2m23s   default       EksCluster      sample-read-only

NAME                                       AGE
providerconfig.castai.upbound.io/default   8m24s

NAME                                            READY   SYNCED   EXTERNAL-NAME                          AGE
ekscluster.castai.upbound.io/sample-read-only   True    True     cd2da8ad-f327-4bd6-936a-b1d99560c139   2m23s