🔪 Investigate if ca cert update code is still required and if not remove the code

[ahmad-ibra]

Description

Currently we have custom code to update ca certs as required.

The comment linked below implies that we may not need this specific functionality:
kubernetes-sigs/kind#2826 (comment)

Investigate if we can update the kind cluster template to mount the cert like the above comment suggests. If that works, we can remove the now redundant code.

AC

• Investigate feasibility of mounting ca certs via an update to the kind cluster template
• If the above works:
  • Update the kind cluster template
  • Remove the now redundant update ca cert code