fix(helm): remove trailing slash

The trailing `/` causes requests to be written with `//` and results in 404 responses from the ollama service.

This results in ollama models being unusable. Removing the training slash here resolves the issue.

kubernetes/helm/templates/_helpers.tpl

@@ -10,7 +10,7 @@ ollama
 {{- if .Values.ollama.externalHost }}
 {{- printf .Values.ollama.externalHost }}
 {{- else }}
-{{- printf "http://%s.%s.svc.cluster.local:%d/" (include "ollama.name" .) (.Release.Namespace) (.Values.ollama.service.port | int) }}
+{{- printf "http://%s.%s.svc.cluster.local:%d" (include "ollama.name" .) (.Release.Namespace) (.Values.ollama.service.port | int) }}
 {{- end }}
 {{- end }}