fix: Using TCP probes for pod liveness and readiness

[andrea-deri]

This PR contains a migration on TCP probes from HTTP ones. This migration is required because, due to numerous incoming HTTP requests, the liveness probe cannot successfully return a response. With this fix, the probes will use an endpoint opened using TCP connections, avoiding saturated HTTP pool.

List of Changes

• Changing protocol for liveness and readiness probes

Motivation and Context

These changes are required in order to resolve a problem on saturated HTTP's channels.

How Has This Been Tested?

• Tested in DEV environment

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as
  expected)

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.

[aomegax]

👍