[DEVHAS-453] Fix Kube-Linter errors

[johnmcollier]

What does this PR do?:

This PR addresses the errors found by kube-linter:

• Adds CPU and Memory requests and limits to the rbac proxy container
• Enables readOnlyRootFilesystem for both containers (HAS and rbac proxy)
• Adds an empty dir volume for the /tmp directory for HAS to be able to write to

Which issue(s)/story(ies) does this PR fixes:

https://issues.redhat.com/browse/DEVHAS-453

PR acceptance criteria:

• Unit/Functional tests

• Documentation

• Client Impact

How to test changes / Special notes to the reviewer:

1. Download Kube-Linter from https://github.com/stackrox/kube-linter
2. cd into config/default
3. Run kustomize build . > mainfests.yaml
4. Run kube-linter lint manifests.yaml. You should see:

KubeLinter development

No lint errors found!

[codecov]

Codecov Report

Patch coverage: 82.55% and project coverage change: -0.75% ⚠️

Comparison is base (1afd7ae) 84.61% compared to head (bd612d6) 83.87%.
Report is 84 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #381      +/-   ##
==========================================
- Coverage   84.61%   83.87%   -0.75%     
==========================================
  Files          27       31       +4     
  Lines        3530     4230     +700     
==========================================
+ Hits         2987     3548     +561     
- Misses        402      515     +113     
- Partials      141      167      +26     

Files Changed	Coverage Δ
pkg/devfile/errors.go	100.00% <ø> (ø)
controllers/component_controller_finalizer.go	63.46% <41.66%> (-11.54%)	⬇️
pkg/util/ioutils/ioutils.go	86.95% <50.00%> (-13.05%)	⬇️
controllers/component_controller.go	73.15% <60.56%> (-4.45%)	⬇️
cdq-analysis/pkg/devfile.go	68.30% <68.30%> (ø)
cdq-analysis/pkg/componentdetectionquery.go	69.28% <69.28%> (ø)
controllers/componentdetectionquery_controller.go	74.51% <71.42%> (+3.97%)	⬆️
pkg/github/token_mock.go	75.67% <75.67%> (-24.33%)	⬇️
controllers/application_controller.go	80.00% <76.81%> (-1.53%)	⬇️
cdq-analysis/pkg/detect.go	73.38% <80.85%> (ø)
... and 17 more

... and 2 files with indirect coverage changes

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[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: johnmcollier, maysunfaisal

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• OWNERS [johnmcollier,maysunfaisal]

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