CT namespace test

[Saichovsky]

Description of the change

• Added customizable namespace names. Added a test item for ct install with custom namespace.
• The DNS UDP and TCP services now listen on different nodePort numberss. Kubernetes does not allow same port for a service when listening on both TCP and UDP

Benefits

• Allows users to set a custom namespace for PodMonitor and for pihole (they need not be the same). Not passing these values results in the default behaviour, except for PodMonitor, which now has a default namespace value of "pihole-prometheus".
• Also allows the DNS service to be installed by helm without failing, when "serviceDns.nodePort" is set for service type NodePort.

Possible drawbacks

None that I can think of

Applicable issues

• fixes #

Additional information

Checklist

• Variables are documented in the values.yaml they will be automatically added to README.md during deployment
• Title of the pull request follows conventional commits
• All commits signed off and in agreement of Developer Certificate of Origin (DCO)