Support Ingress spec IngressClassName on server/web-ingress.yaml

[DingGGu]

Currently, The aqua-server values .web.ingress does not support ingressClassName.

https://github.com/aquasecurity/aqua-helm/blob/2022.4/server/values.yaml#L348-L364
https://github.com/aquasecurity/aqua-helm/blob/2022.4/server/templates/web-ingress.yaml#L31-L67

Set ingressClass via Annotation was deprecated and nginx-ingress-controller does not support annotation nowadays.
https://kubernetes.io/docs/concepts/services-networking/ingress/#deprecated-annotation