feat(jupyterhub): define power user profile

[themightychris]

Description

Defines a profiles list in order to create a new "Power User" profile with increased CPU/memory guarantees

[github-actions]

The following changes will be applied to the production Kubernetes cluster upon merge.

BE AWARE this may not reveal changes that have been manually applied to the cluster getting undone—applying manual changes to the cluster should be avoided.

jupyterhub, hub, Deployment (apps) has changed:
...
          hub.jupyter.org/network-access-proxy-api: "true"
          hub.jupyter.org/network-access-proxy-http: "true"
          hub.jupyter.org/network-access-singleuser: "true"
        annotations:
          checksum/config-map: ecf5268b9d342e8ab7c99ede7cbfde395133c574e9a4b24e25c2e825968e8311
-         checksum/secret: 9d73c780ed16d5b1598ece4f7c6c905cd4873f53ea9bb723b5f6eddaf290ab98
+         checksum/secret: 9a395c20c97d0e1430511c3a659beccc80b2f8736c4be9ed578ae0031e23d178
      spec:
        tolerations:
          - effect: NoSchedule
            key: hub.jupyter.org/dedicated
            operator: Equal
...
jupyterhub, hub, Secret (v1) has changed:
...
    name: hub
  data:
    hub.config.ConfigurableHTTPProxy.auth_token: 'REDACTED # (64 bytes)'
    hub.config.CryptKeeper.keys: 'REDACTED # (64 bytes)'
    hub.config.JupyterHub.cookie_secret: 'REDACTED # (64 bytes)'
-   values.yaml: '-------- # (11166 bytes)'
+   values.yaml: '++++++++ # (11561 bytes)'
  type: Opaque