Add liveness and readiness probes to registry viewer container in the helm chart

[michael-valdron]

Please specify the area for this PR

What does does this PR do / why we need it:

Adds missing required probes removed in devfile/api#1019.

Which issue(s) this PR fixes:

Fixes #?

part of devfile/api#1040

PR acceptance criteria:

• Test Coverage
  • Are your changes sufficiently tested, and are any applicable test cases added or updated to cover your changes?

Documentation (WIP)

• Does the REST API doc need to be updated with your changes?
• Does the registry library doc need to be updated with your changes?

How to test changes / Special notes to the reviewer:

[codecov]

Codecov Report

Base: 43.20% // Head: 43.20% // No change to project coverage 👍

Coverage data is based on head (1f9c876) compared to base (71186fe).
Patch has no changes to coverable lines.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #166   +/-   ##
=======================================
  Coverage   43.20%   43.20%           
=======================================
  Files           6        6           
  Lines        1037     1037           
=======================================
  Hits          448      448           
  Misses        546      546           
  Partials       43       43           

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[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: johnmcollier, michael-valdron

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