chore: updated values.yaml to use uri instead of url

[eternity1984]

There was an inconsistency between the Helm chart templates and values.yaml regarding the connection settings for MongoDB and Elasticsearch.

helm-charts/charts/growi/templates/configmap.yaml

Lines 6 to 15 in 6c3f78c

	{{- if .Values.mongodb.enabled }}
	MONGO_URI: {{ printf "mongodb://%s-mongodb:27017/%s" .Release.Name (include "growi.name" .) }}
	{{- else }}
	MONGO_URI: {{ .Values.mongodb.uri }}
	{{- end }}
	{{- if .Values.elasticsearch.enabled }}
	ELASTICSEARCH_URI: {{ printf "http://elasticsearch-master:9200/%s" (include "growi.name" .) }}
	{{- else }}
	ELASTICSEARCH_URI: {{ .Values.elasticsearch.uri }}
	{{- end }}

In values.yaml, the keys were defined as url, but the templates referenced uri.
This caused the custom values not to be applied when enabled: false.

Updated values.yaml to use uri instead of url.
Verified that MongoDB and Elasticsearch connections work correctly with the updated keys.