add dns record orphan alert

[maleck13]

Verification:

• make local-setup
• create aws-credential, gateway and DNSPolicy (wait for DNS to be ready)
• delete local cluster (this will leave behind records)
• make local-setup
• Install the obervability stack https://github.com/Kuadrant/kuadrant-operator/tree/sample-orphan-alert-gh-202/config/observability
• Log in to prometheus and alerts (should see )
  and it should become active
  Follow the doc at https://github.com/Kuadrant/kuadrant-operator/blob/sample-orphan-alert-gh-202/doc/user-guides/orphan-dns-records.md

[maleck13]

@david-martin @R-Lawton

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.61%. Comparing base (ece13e8) to head (a7f8cdb).
Report is 188 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #862      +/-   ##
==========================================
- Coverage   80.20%   78.61%   -1.60%     
==========================================
  Files          64       91      +27     
  Lines        4492     7046    +2554     
==========================================
+ Hits         3603     5539    +1936     
- Misses        600     1092     +492     
- Partials      289      415     +126     

Flag	Coverage Δ
bare-k8s-integration	5.11% <ø> (?)
controllers-integration	70.64% <ø> (?)
envoygateway-integration	46.53% <ø> (?)
gatewayapi-integration	10.61% <ø> (?)
integration	?
istio-integration	50.42% <ø> (?)
unit	27.75% <ø> (-2.28%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
api/v1beta1 (u)	38.46% <0.00%> (-32.97%)	⬇️
api/v1beta2 (u)	74.10% <63.82%> (-17.33%)	⬇️
pkg/common (u)	88.13% <ø> (-0.70%)	⬇️
pkg/istio (u)	70.95% <ø> (-2.96%)	⬇️
pkg/log (u)	94.73% <ø> (ø)
pkg/reconcilers (u)	∅ <ø> (∅)
pkg/rlptools (u)	84.26% <ø> (+4.81%)	⬆️
controllers (i)	80.43% <80.17%> (+3.63%)	⬆️

see 42 files with indirect coverage changes

[david-martin]

I'm seeing a vendoring issue locally when running make local-setup.
I'll have to try figure this out before I can try out the steps.

/Users/davidmartin/work/kuadrant-operator/bin/controller-gen crd paths="./api/v1alpha1;./api/v1beta1;./api/v1beta2" output:crd:artifacts:config=config/crd/bases
Error: load packages in root "/Users/davidmartin/work/kuadrant-operator/api/v1alpha1": err: exit status 1: stderr: go: inconsistent vendoring in /Users/davidmartin/work/kuadrant-operator:
	github.com/cert-manager/cert-manager@v1.12.1: is explicitly required in go.mod, but not marked as explicit in vendor/modules.txt
....
....lots of stack
....
run `controller-gen crd paths=./api/v1alpha1;./api/v1beta1;./api/v1beta2 output:crd:artifacts:config=config/crd/bases -w` to see all available markers, or `controller-gen crd paths=./api/v1alpha1;./api/v1beta1;./api/v1beta2 output:crd:artifacts:config=config/crd/bases -h` for usage
make[6]: *** [manifests] Error 1
make[5]: *** [k8s-env-setup] Error 2
make[4]: *** [gatewayapi-env-setup] Error 2
make[3]: *** [istio-env-setup] Error 2
make[2]: *** [env-setup] Error 2
make[1]: *** [local-env-setup] Error 2
make: *** [local-setup] Error 2

go version
go version go1.22.5 darwin/amd64