erp5: publish cloudooo URL as http:// not cloudooo://

Because this url is use by [erp5_promise](https://lab.nexedi.com/nexedi/erp5/blob/450ae11128503934b4d81de8c7c72ba7aa7948d5/bt5/erp5_promise/SkinTemplateItem/portal_skins/erp5_promise/Alarm_checkPromiseConversionServer.py#L5) to configure cloudooo in the preference, but erp5 preference is not supposed to be `cloudooo://` but just `http://` . 

FYI, this erp5_promise is the **Check Site Consistency** part described in the "ERP5 on webrunner" installation procedure as documented in https://www.erp5.com/erp5-HowTo.Request.Erp5.Instance.On.Slap.Os.Webrunner

/cc @tc @vpelletier 

/reviewed-on nexedi/slapos!94

software/erp5/instance-erp5-output-schema.json

@@ -41,7 +41,7 @@
     },
     "cloudooo-url": {
       "description": "Conversion service access information - DEPRECATED",
-      "pattern": "^cloudooo://",
+      "pattern": "^(http|https)://",
       "type": "string"
     },
     "mariadb-database-list": {

stack/erp5/buildout.cfg

@@ -177,7 +177,7 @@ md5sum = 763db0c4a94649296e74fe1f53c03940
 [template-cloudooo]
 <= download-base
 filename = instance-cloudoo.cfg.in
-md5sum = 1eedc7ee93ac7c95e1c7d50a36ef2b01
+md5sum = 5691b7f12d22bfb8a926dfcb592f12c8
 
 [template-zope-conf]
 <= download-base

stack/erp5/instance-cloudoo.cfg.in

@@ -14,9 +14,9 @@ parts +=
 [publish]
 recipe = slapos.cookbook:publish.serialised
 {% if use_ipv6 -%}
-url = cloudooo://[${ipv6toipv4:ipv6}]:${ipv6toipv4:ipv6-port}/
+url = http://[${ipv6toipv4:ipv6}]:${ipv6toipv4:ipv6-port}/
 {% else -%}
-url = cloudooo://${cloudooo-instance:ip}:${cloudooo-instance:port}/
+url = http://${cloudooo-instance:ip}:${cloudooo-instance:port}/
 {% endif -%}
 
 [cloudooo-instance]