Register the API resources into the "pulumi" kubectl category

[EronWright]

Proposed changes

Adds the PKO API resources to a "pulumi" category for convenience:

❯ kubectl get pulumi
NAME                                                         WORKSPACE                 PROGRESSING   FAILED   COMPLETE   URL      
update.auto.pulumi.com/kubernetes-py-guestbook-1936f1e00d3   kubernetes-py-guestbook   False         False    True       https://app.pulumi.com/eron-pulumi-corp/kubernetes-py-guestbook/kubernetes-py-guestbook/updates/118
update.auto.pulumi.com/kubernetes-py-guestbook-1936f31172a   kubernetes-py-guestbook   False         False    True       https://app.pulumi.com/eron-pulumi-corp/kubernetes-py-guestbook/kubernetes-py-guestbook/updates/119
update.auto.pulumi.com/kubernetes-py-guestbook-1936fefd0de   kubernetes-py-guestbook   False         False    True       https://app.pulumi.com/eron-pulumi-corp/kubernetes-py-guestbook/kubernetes-py-guestbook/updates/120

NAME                                                IMAGE                           READY   ADDRESS
workspace.auto.pulumi.com/kubernetes-py-guestbook   pulumi/pulumi:3.134.1-nonroot   True    kubernetes-py-guestbook-workspace.default:50051

NAME                             AGE   URL
program.pulumi.com/random-yaml   70m   http://pulumi-kubernetes-operator.pulumi-kubernetes-operator:80/programs/default/random-yaml

NAME                                       LAST UPDATE   AGE   READY   RECONCILING   STALLED   PERMALINK
stack.pulumi.com/kubernetes-py-guestbook   succeeded     75m   True                            https://app.pulumi.com/eron-pulumi-corp/kubernetes-py-guestbook/kubernetes-py-guestbook/updates/120

Related issues (optional)

Closes #758

[rquitales]

Nice!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 50.19%. Comparing base (b648f73) to head (a4fe846).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #765   +/-   ##
=======================================
  Coverage   50.19%   50.19%           
=======================================
  Files          30       30           
  Lines        4210     4210           
=======================================
  Hits         2113     2113           
  Misses       1910     1910           
  Partials      187      187           

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