feat(chart): Add Gateway API support and merge HTTP + GRPC traffic

[Filip7656]

This PR adds support for Gateway API and exposing both HTTP and gRPC traffic through a single Gateway API HTTPRoute in the Helm chart.
Additionaly i had to fix problems with readme-generator by fixing vault params.

Dex changes:

• I had to add httproutes to dex subchart otherwise users who want to use only gateway api could not have used development mode.

## Used only if .Values.development is true
## Yes, dex.dex, since we are overriding the dex section in the dex subchart
dex:
  dex:
    # Point to the [controlplane http ingress]/auth/callback
    redirectURL: http(s)://[controlplane http ingress]/auth/callback
    httpRoute:
      enabled: false
      hostnames:
        - dex.[domain]
      parentRefs: []
      #    - name: your-gateway
      #      sectionName: http
      #      namespace: your-namespace
    # Expose the dex instance to the outside world
    ingress:
      enabled: false
      tls: false
      hostname: ""
      ingressClassName: ""

Also I have updated helpers with httpRoute configurations.
Example:

{{/*
External URL the CAS can be reached at
This endpoint is used for the cas to redirect downloads
NOTE: Load balancer service type is not supported
*/}}
{{- define "chainloop.cas.external_url" -}}
{{- $service := .Values.cas.service }}
{{- $ingress := .Values.cas.ingress }}
{{- $httpRoute := .Values.cas.httpRoute }}

{{- if .Values.cas.externalURL }}
{{- .Values.cas.externalURL }}
{{- else if (and $ingress $ingress.enabled $ingress.hostname) }}
{{- printf "%s://%s" (ternary "https" "http" $ingress.tls ) $ingress.hostname }}
{{- else if (and $httpRoute $httpRoute.enabled $httpRoute.hostnames) }}
{{- printf "%s://%s" (ternary "https" "http" $httpRoute.tls ) (index $httpRoute.hostnames 0) }}
{{- else if (and (eq $service.type "NodePort") $service.nodePorts (not (empty $service.nodePorts.http))) }}
{{- printf "http://localhost:%s" $service.nodePorts.http }}
{{- end -}}
{{- end -}}

Configuration is made up to bitnami standards

Params added in values.yaml

  ## Gateway API HTTP routing parameters
  ## ref: https://gateway-api.sigs.k8s.io/guides/http-routing/
  ## We dont have to create two http routes for HTTP and API because when we use Gateway API, we can use the same HTTPRoute for both.
  ##
  httpRoute:
    ## @param cas.httpRoute.enabled Enable HTTPRoute generation for CAS
    ##
    enabled: false
    ## @param controlplane.httpRoute.tls Indicate if tls is active for this route
    tls: false
    ## @param cas.httpRoute.annotations Additional annotations for the HTTPRoute resource
    ##
    annotations: {}
    ## @param cas.httpRoute.labels Additional labels for the HTTPRoute resource
    ##
    labels: {}
    ## @param cas.httpRoute.parentRefs Gateways the HTTPRoute is attached to. If unspecified, it'll be attached to Gateway named 'gateway' in the same namespace.
    ## e.g:
    ## parentRefs:
    ##   - name: my-gateway
    ##     sectionName: http
    ##     namespace: default
    ##
    parentRefs: []
    ## @param cas.httpRoute.hostnames [array] List of hostnames matching HTTP header
    ##
    hostnames:
      - cas.dev.local
    ## @param cas.httpRoute.matches [array] List of match rules applied to the HTTPRoute for the default svc backend reference
    ##
    matches:
      - path:
          type: PathPrefix
          value: /
    ## @param cas.httpRoute.filters List of filter rules applied to the HTTPRoute for the default svc backend reference
    ##
    filters: []
    ## @param cas.httpRoute.extraRules List of extra rules applied to the HTTPRoute
    ## e.g:
    ## extraRules:
    ##   - matches:
    ##       - path:
    ##           type: PathPrefix
    ##           value: /login
    ##     filters:
    ##       - type: RequestHeaderModifier
    ##         requestHeaderModifier:
    ##           set:
    ##             - name: My-Overwrite-Header
    ##               value: this-is-the-only-value
    ##           remove:
    ##             - User-Agent
    ##     backendRefs:
    ##       - name: chainloop-cas
    ##         port: 80
    ##
    extraRules: []

TODO:

• Http - > HTTPS redirection
• NOTES.txt
• Configuration when in development mode (dex)

Changes are connected with:
#2641 #2642