[FEAT][HELM] set ES SSL verification (#5807)

# Description
Added a variable to set `ARGILLA_ELASTICSEARCH_SSL_VERIFY` in the helm
chart.

_BTW: I have found there's no documentation for the helm values, I'd
love to create a one anytime._

examples/deployments/k8s/argilla-chart/templates/deployment.yaml

@@ -32,6 +32,8 @@ spec:
             - name: ARGILLA_ELASTICSEARCH
               # TODO: modify this to use externalElasticsearch.host if elasticsearch.useOperator is false
               value: {{if .Values.elasticsearch.useOperator}}"http://{{ include "argilla.fullname" . }}-es-http:9200"{{else}}"{{ .Values.externalElasticsearch.host }}:{{ .Values.externalElasticsearch.port }}"{{end}}
+            - name: ARGILLA_ELASTICSEARCH_SSL_VERIFY
+              value: {{ .Values.elasticsearch.sslVerify | quote }}
             - name: ARGILLA_AUTH_SECRET_KEY
               value: {{ .Values.argilla.authSecretKey | quote }}
             - name: ARGILLA_REDIS_URL

examples/deployments/k8s/argilla-chart/values.yaml

@@ -38,6 +38,7 @@ argilla:
 # To disable it, set `elasticsearch.useOperator` to `false`
 # and set `externalElasticsearch.host` to the host of your existing Elasticsearch instance.
 elasticsearch:
+  sslVerify: true
   useOperator: true
   version: 8.5.3
   nodeCount: 1