BundleDeployment: add and implement required serviceAccountName and installNamespace fields

[joelanford]

Hacking a bit on rukpak BundleDeployment to put the following new required fields in the spec:

• installNamespace
• serviceAccountName

In the reconciler, I've removed all cluster-admin-like permissions and replaced them with just permission to create token requests.

I've also reorganized helm-operator-plugins a bit:

• Make the ActionConfigGetter capable of producing a different rest.Config per object
• Move health checks to the ActionInterface so that it uses the same rest.Config as the other helm interactions

Lastly, I've added a token getter/cache implementation and updated the setup of the controllers in rukpak's main.go files to use that for the actionConfigGetter configuration.

With all of that, I've run a few tests with permissions missing and with all permissions present, and things seem to work.

This is a WIP because nothing in helm-operator-plugins is merged, and I've pinned to my local copy that combines both of the above PRs.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 7 lines in your changes are missing coverage. Please review.

Project coverage is 35.89%. Comparing base (3d1ba69) to head (121035b).
Report is 34 commits behind head on main.

Files	Patch %	Lines
...l/controllers/bundledeployment/bundledeployment.go	0.00%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #857      +/-   ##
==========================================
- Coverage   37.28%   35.89%   -1.39%     
==========================================
  Files           9        8       -1     
  Lines         853      808      -45     
==========================================
- Hits          318      290      -28     
+ Misses        491      478      -13     
+ Partials       44       40       -4     

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[openshift-merge-robot]

PR needs rebase.

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[github-actions]

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